diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1eeea307..f5588f67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,8 @@ Template for next version
 - [API] fix change user role (https://github.com/ohmyform/api/pull/49)
 - [API] update sqlite to 5.1.6
 - [API] delete visitors on form delete (https://github.com/ohmyform/ohmyform/issues/181)
+- [API] add mutation to delete submissions as form admin (https://github.com/ohmyform/ohmyform/issues/186)
+- [UI] add interface to delete submissions as form admin (https://github.com/ohmyform/ohmyform/issues/186)
 
 ## [1.0.3] - 2022-03-27
 
diff --git a/api/src/entity/submission.entity.ts b/api/src/entity/submission.entity.ts
index 1a222fee..dbf53e51 100644
--- a/api/src/entity/submission.entity.ts
+++ b/api/src/entity/submission.entity.ts
@@ -20,7 +20,7 @@ export class SubmissionEntity {
   @PrimaryGeneratedColumn()
   public id: number
 
-  @OneToMany(() => SubmissionFieldEntity, field => field.submission, { eager: true })
+  @OneToMany(() => SubmissionFieldEntity, field => field.submission, { eager: true, cascade: true })
   public fields: SubmissionFieldEntity[]
 
   @ManyToOne(() => FormEntity, form => form.submissions, { eager: true })
@@ -29,7 +29,7 @@ export class SubmissionEntity {
   @RelationId('form')
   readonly formId: number
 
-  @ManyToOne(() => VisitorEntity, visitor => visitor.submissions, { eager: true })
+  @ManyToOne(() => VisitorEntity, visitor => visitor.submissions, { eager: true, cascade: true })
   public visitor: VisitorEntity
 
   @Column()
diff --git a/api/src/resolver/submission/index.ts b/api/src/resolver/submission/index.ts
index 483fe0d3..7c843271 100644
--- a/api/src/resolver/submission/index.ts
+++ b/api/src/resolver/submission/index.ts
@@ -1,3 +1,4 @@
+import { SubmissionDeleteMutation } from './submission.delete.mutation'
 import { SubmissionFieldResolver } from './submission.field.resolver'
 import { SubmissionListQuery } from './submission.list.query'
 import { SubmissionProgressResolver } from './submission.progress.resolver'
@@ -10,6 +11,7 @@ import { SubmissionStatisticResolver } from './submission.statistic.resolver'
 import { SubmissionFinishMutation } from './submission.finish.mutation'
 
 export const submissionResolvers = [
+  SubmissionDeleteMutation,
   SubmissionFieldResolver,
   SubmissionListQuery,
   SubmissionProgressResolver,
diff --git a/api/src/resolver/submission/submission.delete.mutation.ts b/api/src/resolver/submission/submission.delete.mutation.ts
new file mode 100644
index 00000000..8dcd7e37
--- /dev/null
+++ b/api/src/resolver/submission/submission.delete.mutation.ts
@@ -0,0 +1,34 @@
+import { Injectable } from '@nestjs/common'
+import { Args, ID, Mutation } from '@nestjs/graphql'
+import { User } from '../../decorator/user.decorator'
+import { DeletedModel } from '../../dto/deleted.model'
+import { SubmissionEntity } from '../../entity/submission.entity'
+import { UserEntity } from '../../entity/user.entity'
+import { SubmissionByIdPipe } from '../../pipe/submission/submission.by.id.pipe'
+import { FormService } from '../../service/form/form.service'
+import { IdService } from '../../service/id.service'
+import { SubmissionDeleteService } from '../../service/submission/submission.delete.service'
+
+@Injectable()
+export class SubmissionDeleteMutation {
+  constructor(
+    private readonly formService: FormService,
+    private readonly deleteService: SubmissionDeleteService,
+    private readonly idService: IdService,
+  ) {
+  }
+
+  @Mutation(() => DeletedModel)
+  async submissionDelete(
+    @User() user: UserEntity,
+    @Args({ name: 'id', type: () => ID }, SubmissionByIdPipe) submission: SubmissionEntity,
+  ): Promise<DeletedModel> {
+    if (!this.formService.isAdmin(submission.form, user)) {
+      throw new Error('invalid form')
+    }
+
+    await this.deleteService.delete(submission.id)
+
+    return new DeletedModel(this.idService.encode(submission.id))
+  }
+}
diff --git a/api/src/service/form/form.delete.service.ts b/api/src/service/form/form.delete.service.ts
index 4c155b0d..d827e529 100644
--- a/api/src/service/form/form.delete.service.ts
+++ b/api/src/service/form/form.delete.service.ts
@@ -4,6 +4,7 @@ import { Repository } from 'typeorm'
 import { FormEntity } from '../../entity/form.entity'
 import { SubmissionEntity } from '../../entity/submission.entity'
 import { VisitorEntity } from '../../entity/visitor.entity'
+import { SubmissionDeleteService } from '../submission/submission.delete.service'
 
 @Injectable()
 export class FormDeleteService {
@@ -12,17 +13,22 @@ export class FormDeleteService {
     private readonly formRepository: Repository<FormEntity>,
     @InjectRepository(SubmissionEntity)
     private readonly submissionRepository: Repository<SubmissionEntity>,
+    private readonly submissionDelete: SubmissionDeleteService,
     @InjectRepository(VisitorEntity)
     private readonly visitorRepository: Repository<VisitorEntity>,
   ) {
   }
 
   async delete(id: number): Promise<void> {
-    await this.submissionRepository.delete({
+    const submissions = await this.submissionRepository.find({
       form: {
         id,
       },
     })
+
+    await Promise.all(
+      submissions.map(submission => this.submissionDelete.delete(submission.id)),
+    )
     await this.visitorRepository.delete({
       form: {
         id,
diff --git a/api/src/service/submission/index.ts b/api/src/service/submission/index.ts
index ca460216..30f0e2af 100644
--- a/api/src/service/submission/index.ts
+++ b/api/src/service/submission/index.ts
@@ -1,3 +1,4 @@
+import { SubmissionDeleteService } from './submission.delete.service'
 import { SubmissionHookService } from './submission.hook.service'
 import { SubmissionNotificationService } from './submission.notification.service'
 import { SubmissionService } from './submission.service'
@@ -7,6 +8,7 @@ import { SubmissionStatisticService } from './submission.statistic.service'
 import { SubmissionTokenService } from './submission.token.service'
 
 export const submissionServices = [
+  SubmissionDeleteService,
   SubmissionHookService,
   SubmissionNotificationService,
   SubmissionService,
diff --git a/api/src/service/submission/submission.delete.service.ts b/api/src/service/submission/submission.delete.service.ts
new file mode 100644
index 00000000..46deab5a
--- /dev/null
+++ b/api/src/service/submission/submission.delete.service.ts
@@ -0,0 +1,25 @@
+import { Injectable } from '@nestjs/common'
+import { InjectRepository } from '@nestjs/typeorm'
+import { Repository } from 'typeorm'
+import { SubmissionEntity } from '../../entity/submission.entity'
+import { SubmissionFieldEntity } from '../../entity/submission.field.entity'
+
+@Injectable()
+export class SubmissionDeleteService {
+  constructor(
+    @InjectRepository(SubmissionEntity)
+    private readonly submissionRepository: Repository<SubmissionEntity>,
+    @InjectRepository(SubmissionFieldEntity)
+    private readonly fieldRepository: Repository<SubmissionFieldEntity>,
+  ) {
+  }
+
+  async delete(id: number): Promise<void> {
+    await this.fieldRepository.delete({
+      submission: {
+        id,
+      },
+    })
+    await this.submissionRepository.delete(id)
+  }
+}
diff --git a/ui/graphql/mutation/form.delete.mutation.ts b/ui/graphql/mutation/form.delete.mutation.ts
index a8699f8b..79c92cda 100644
--- a/ui/graphql/mutation/form.delete.mutation.ts
+++ b/ui/graphql/mutation/form.delete.mutation.ts
@@ -20,5 +20,20 @@ const MUTATION = gql`
 `
 
 export const useFormDeleteMutation = (
-  data?: MutationHookOptions<Data, Variables>
-): MutationTuple<Data, Variables> => useMutation<Data, Variables>(MUTATION, data)
+  options: MutationHookOptions<Data, Variables> = {}
+): MutationTuple<Data, Variables> => {
+  const oldUpdate = options.update
+
+  options.update = (cache, result, options) => {
+    cache.evict({
+      fieldName: 'listForms',
+    })
+    cache.gc()
+
+    if (oldUpdate) {
+      oldUpdate(cache, result, options)
+    }
+  }
+
+  return useMutation<Data, Variables>(MUTATION, options)
+}
diff --git a/ui/graphql/mutation/submission.delete.mutation.ts b/ui/graphql/mutation/submission.delete.mutation.ts
new file mode 100644
index 00000000..d31a3bdd
--- /dev/null
+++ b/ui/graphql/mutation/submission.delete.mutation.ts
@@ -0,0 +1,39 @@
+import { MutationHookOptions, MutationTuple, useMutation } from '@apollo/client'
+import { gql } from '@apollo/client/core'
+
+interface Data {
+  submission: {
+    id
+  }
+}
+
+interface Variables {
+  id: string
+}
+
+const MUTATION = gql`
+  mutation submissionDelete($id: ID!) {
+    submission: submissionDelete(id: $id) {
+      id
+    }
+  }
+`
+
+export const useSubmissionDeleteMutation = (
+  options: MutationHookOptions<Data, Variables> = {}
+): MutationTuple<Data, Variables> => {
+  const oldUpdate = options.update
+
+  options.update = (cache, result, options) => {
+    cache.evict({
+      fieldName: 'listSubmissions',
+    })
+    cache.gc()
+
+    if (oldUpdate) {
+      oldUpdate(cache, result, options)
+    }
+  }
+
+  return useMutation<Data, Variables>(MUTATION, options)
+}
diff --git a/ui/graphql/mutation/user.delete.mutation.ts b/ui/graphql/mutation/user.delete.mutation.ts
index 48e59dae..13ea48d7 100644
--- a/ui/graphql/mutation/user.delete.mutation.ts
+++ b/ui/graphql/mutation/user.delete.mutation.ts
@@ -20,5 +20,20 @@ const MUTATION = gql`
 `
 
 export const useUserDeleteMutation = (
-  data?: MutationHookOptions<Data, Variables>
-): MutationTuple<Data, Variables> => useMutation<Data, Variables>(MUTATION, data)
+  options: MutationHookOptions<Data, Variables> = {}
+): MutationTuple<Data, Variables> => {
+  const oldUpdate = options.update
+
+  options.update = (cache, result, options) => {
+    cache.evict({
+      fieldName: 'listUsers',
+    })
+    cache.gc()
+
+    if (oldUpdate) {
+      oldUpdate(cache, result, options)
+    }
+  }
+
+  return useMutation<Data, Variables>(MUTATION, options)
+}
diff --git a/ui/locales/en/submission.json b/ui/locales/en/submission.json
index 75a25c80..11cd8145 100644
--- a/ui/locales/en/submission.json
+++ b/ui/locales/en/submission.json
@@ -1,8 +1,13 @@
 {
   "add": "Add Submission",
   "city": "City",
+  "confirmDelete": "Really delete Submission?",
   "country": "Country",
   "created": "Created",
+  "delete.button": "Delete",
+  "deleteError": "Could not delete Submission",
+  "deleteNow": "Delete",
+  "deleted": "Submission deleted",
   "device": {
     "name": "Device Name",
     "type": "Device Type"
diff --git a/ui/pages/admin/forms/[id]/submissions.tsx b/ui/pages/admin/forms/[id]/submissions.tsx
index 7bd53c7a..43829b15 100644
--- a/ui/pages/admin/forms/[id]/submissions.tsx
+++ b/ui/pages/admin/forms/[id]/submissions.tsx
@@ -1,4 +1,4 @@
-import { Button, Progress, Table } from 'antd'
+import { Button, message, Popconfirm, Progress, Table } from 'antd'
 import { PaginationProps } from 'antd/es/pagination'
 import { ProgressProps } from 'antd/lib/progress'
 import { ColumnsType } from 'antd/lib/table/interface'
@@ -10,12 +10,15 @@ import dayjs from 'dayjs'
 import { NextPage } from 'next'
 import Link from 'next/link'
 import { useRouter } from 'next/router'
-import React, { useState } from 'react'
+import React, { useCallback, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import { ExportSubmissionAction } from '../../../../components/form/admin/export.submission.action'
 import { SubmissionValues } from '../../../../components/form/admin/submission.values'
 import { FormPagerFragment } from '../../../../graphql/fragment/form.pager.fragment'
 import { SubmissionFragment } from '../../../../graphql/fragment/submission.fragment'
+import {
+  useSubmissionDeleteMutation,
+} from '../../../../graphql/mutation/submission.delete.mutation'
 import { useSubmissionPagerQuery } from '../../../../graphql/query/submission.pager.query'
 
 const Submissions: NextPage = () => {
@@ -44,6 +47,21 @@ const Submissions: NextPage = () => {
       setEntries(pager.entries)
     },
   })
+  const [deleteMutation] = useSubmissionDeleteMutation()
+
+  const doDelete = useCallback(async (id) => {
+    try {
+      await deleteMutation({
+        variables: {
+          id,
+        },
+      })
+
+      await message.success(t('submission:deleted'))
+    } catch (e) {
+      await message.error(t('submission:deleteError'))
+    }
+  }, [])
 
   const columns: ColumnsType<SubmissionFragment> = [
     {
@@ -79,6 +97,22 @@ const Submissions: NextPage = () => {
       },
       responsive: ['lg'],
     },
+    {
+      title: ' ',
+      render(_, submission) {
+        return (
+          <Popconfirm
+            title={t('submission:confirmDelete')}
+            onConfirm={() => doDelete(submission.id)}
+          >
+            <Button danger>
+              {t('submission:deleteNow')}
+            </Button>
+          </Popconfirm>
+        )
+      },
+      width: 100,
+    },
   ]
 
   return (
diff --git a/ui/pages/index.tsx b/ui/pages/index.tsx
index 325c150b..b95d1d03 100644
--- a/ui/pages/index.tsx
+++ b/ui/pages/index.tsx
@@ -1,4 +1,4 @@
-import { Alert, Layout } from 'antd'
+import { Alert, Layout, Space } from 'antd'
 import { AuthFooter } from 'components/auth/footer'
 import { GetStaticProps, NextPage } from 'next'
 import getConfig from 'next/config'
@@ -78,8 +78,26 @@ const Index: NextPage = () => {
 
       {status.error && (
         <Alert
-          message={`There is an error with your API connection: ${status.error.message}`}
-          style={{ marginBottom: 40, marginLeft: 16, marginRight: 16 }}
+          type={'error'}
+          message={
+            <Space direction={'vertical'}>
+              <div>There is an error with your API connection:</div>
+              <code>{status.error.message}</code>
+              <div style={{
+                fontStyle: 'italic',
+              }}>
+                We need to be able to access the server graphql endpoint at /graphql,{' '}
+                if you only stared the{' '}
+                <a href={'https://hub.docker.com/r/ohmyform/ui'}>ohmyform/ui</a>{' '}
+                container you are missing the{' '}
+                <a href={'https://hub.docker.com/r/ohmyform/api'}>ohmyform/api</a>{' '}
+                container. As an alternative you can also start the{' '}
+                <a href={'https://hub.docker.com/r/ohmyform/ohmyform'}>ohmyform/ohmyform</a>{' '}
+                container which includes both the ui and the api.
+              </div>
+            </Space>
+          }
+          style={{marginBottom: 40, marginLeft: 16, marginRight: 16 }}
         />
       )}
       <AuthFooter />