diff --git a/app/soapbox/components/modal-root.tsx b/app/soapbox/components/modal-root.tsx
index f3cdac7da..aded268e9 100644
--- a/app/soapbox/components/modal-root.tsx
+++ b/app/soapbox/components/modal-root.tsx
@@ -5,15 +5,18 @@ import { FormattedMessage, defineMessages, useIntl } from 'react-intl';
 import { useHistory } from 'react-router-dom';
 
 import { cancelReplyCompose } from 'soapbox/actions/compose';
+import { cancelEventCompose } from 'soapbox/actions/events';
 import { openModal, closeModal } from 'soapbox/actions/modals';
-import { useAppDispatch, useAppSelector, usePrevious } from 'soapbox/hooks';
+import { useAppDispatch, usePrevious } from 'soapbox/hooks';
 
 import type { UnregisterCallback } from 'history';
 import type { ModalType } from 'soapbox/features/ui/components/modal-root';
 import type { ReducerCompose } from 'soapbox/reducers/compose';
+import type { ReducerRecord as ReducerComposeEvent } from 'soapbox/reducers/compose-event';
 
 const messages = defineMessages({
   confirm: { id: 'confirmations.delete.confirm', defaultMessage: 'Delete' },
+  cancelEditing: { id: 'confirmations.cancel_editing.confirm', defaultMessage: 'Cancel editing' },
 });
 
 export const checkComposeContent = (compose?: ReturnType<typeof ReducerCompose>) => {
@@ -25,6 +28,15 @@ export const checkComposeContent = (compose?: ReturnType<typeof ReducerCompose>)
   ].some(check => check === true);
 };
 
+export const checkEventComposeContent = (compose?: ReturnType<typeof ReducerComposeEvent>) => {
+  return !!compose && [
+    compose.name.length > 0,
+    compose.status.length > 0,
+    compose.location !== null,
+    compose.banner !== null,
+  ].some(check => check === true);
+};
+
 interface IModalRoot {
   onCancel?: () => void,
   onClose: (type?: ModalType) => void,
@@ -46,8 +58,6 @@ const ModalRoot: React.FC<IModalRoot> = ({ children, onCancel, onClose, type })
   const prevChildren = usePrevious(children);
   const prevType = usePrevious(type);
 
-  const isEditing = useAppSelector(state => state.compose.get('compose-modal')?.id !== null);
-
   const visible = !!children;
 
   const handleKeyUp = (e: KeyboardEvent) => {
@@ -58,13 +68,20 @@ const ModalRoot: React.FC<IModalRoot> = ({ children, onCancel, onClose, type })
 
   const handleOnClose = () => {
     dispatch((_, getState) => {
-      const hasComposeContent = checkComposeContent(getState().compose.get('compose-modal'));
+      const compose = getState().compose.get('compose-modal');
+      const hasComposeContent = checkComposeContent(compose);
+      const hasEventComposeContent = checkEventComposeContent(getState().compose_event);
 
       if (hasComposeContent && type === 'COMPOSE') {
+        const isEditing = compose!.id !== null;
         dispatch(openModal('CONFIRM', {
           icon: require('@tabler/icons/trash.svg'),
-          heading: isEditing ? <FormattedMessage id='confirmations.cancel_editing.heading' defaultMessage='Cancel post editing' /> : <FormattedMessage id='confirmations.delete.heading' defaultMessage='Delete post' />,
-          message: isEditing ? <FormattedMessage id='confirmations.cancel_editing.message' defaultMessage='Are you sure you want to cancel editing this post? All changes will be lost.' /> : <FormattedMessage id='confirmations.delete.message' defaultMessage='Are you sure you want to delete this post?' />,
+          heading: isEditing
+            ? <FormattedMessage id='confirmations.cancel_editing.heading' defaultMessage='Cancel post editing' />
+            : <FormattedMessage id='confirmations.delete.heading' defaultMessage='Delete post' />,
+          message: isEditing
+            ? <FormattedMessage id='confirmations.cancel_editing.message' defaultMessage='Are you sure you want to cancel editing this post? All changes will be lost.' />
+            : <FormattedMessage id='confirmations.delete.message' defaultMessage='Are you sure you want to delete this post?' />,
           confirm: intl.formatMessage(messages.confirm),
           onConfirm: () => {
             dispatch(closeModal('COMPOSE'));
@@ -74,7 +91,26 @@ const ModalRoot: React.FC<IModalRoot> = ({ children, onCancel, onClose, type })
             dispatch(closeModal('CONFIRM'));
           },
         }));
-      } else if (hasComposeContent && type === 'CONFIRM') {
+      } else if (hasEventComposeContent && type === 'COMPOSE_EVENT') {
+        const isEditing = getState().compose_event.id !== null;
+        dispatch(openModal('CONFIRM', {
+          icon: require('@tabler/icons/trash.svg'),
+          heading: isEditing
+            ? <FormattedMessage id='confirmations.cancel_event_editing.heading' defaultMessage='Cancel event editing' />
+            : <FormattedMessage id='confirmations.delete_event.heading' defaultMessage='Delete event' />,
+          message: isEditing
+            ? <FormattedMessage id='confirmations.cancel_event_editing.message' defaultMessage='Are you sure you want to cancel editing this event? All changes will be lost.' />
+            : <FormattedMessage id='confirmations.delete_event.message' defaultMessage='Are you sure you want to delete this event?' />,
+          confirm: intl.formatMessage(isEditing ? messages.cancelEditing : messages.confirm),
+          onConfirm: () => {
+            dispatch(closeModal('COMPOSE_EVENT'));
+            dispatch(cancelEventCompose());
+          },
+          onCancel: () => {
+            dispatch(closeModal('CONFIRM'));
+          },
+        }));
+      } else if ((hasComposeContent || hasEventComposeContent) && type === 'CONFIRM') {
         dispatch(closeModal('CONFIRM'));
       } else {
         onClose();
diff --git a/app/soapbox/features/event/event-information.tsx b/app/soapbox/features/event/event-information.tsx
index 54c5f5f40..7e6f2d4a3 100644
--- a/app/soapbox/features/event/event-information.tsx
+++ b/app/soapbox/features/event/event-information.tsx
@@ -56,9 +56,9 @@ const EventInformation: React.FC<IEventInformation> = ({ params }) => {
   };
 
   const renderEventLocation = useCallback(() => {
-    const event = status?.event;
+    const event = status!.event!;
 
-    return event?.location && (
+    return event.location && (
       <Stack space={1}>
         <Text size='xl' weight='bold'>
           <FormattedMessage id='event.location' defaultMessage='Location' />
@@ -86,12 +86,12 @@ const EventInformation: React.FC<IEventInformation> = ({ params }) => {
   }, [status]);
 
   const renderEventDate = useCallback(() => {
-    const event = status?.event;
+    const event = status!.event!;
+
+    if (!event.start_time) return null;
 
     const startDate = new Date(event.start_time);
-    const endDate = new Date(event.end_time);
-
-    if (!startDate) return null;
+    const endDate = event.end_time && new Date(event.end_time);
 
     const sameDay = endDate && startDate.getDate() === endDate.getDate() && startDate.getMonth() === endDate.getMonth() && startDate.getFullYear() === endDate.getFullYear();
 
diff --git a/app/soapbox/features/ui/components/modals/compose-event-modal/compose-event-modal.tsx b/app/soapbox/features/ui/components/modals/compose-event-modal/compose-event-modal.tsx
index 4bbe709e2..ca041a758 100644
--- a/app/soapbox/features/ui/components/modals/compose-event-modal/compose-event-modal.tsx
+++ b/app/soapbox/features/ui/components/modals/compose-event-modal/compose-event-modal.tsx
@@ -16,9 +16,12 @@ import {
   fetchEventParticipationRequests,
   rejectEventParticipationRequest,
   authorizeEventParticipationRequest,
+  cancelEventCompose,
 } from 'soapbox/actions/events';
+import { closeModal, openModal } from 'soapbox/actions/modals';
 import { ADDRESS_ICONS } from 'soapbox/components/autosuggest-location';
 import LocationSearch from 'soapbox/components/location-search';
+import { checkEventComposeContent } from 'soapbox/components/modal-root';
 import { Button, Form, FormGroup, HStack, Icon, IconButton, Input, Modal, Spinner, Stack, Tabs, Text, Textarea } from 'soapbox/components/ui';
 import AccountContainer from 'soapbox/containers/account-container';
 import { isCurrentOrFutureDate } from 'soapbox/features/compose/components/schedule-form';
@@ -38,6 +41,8 @@ const messages = defineMessages({
   pending: { id: 'compose_event.tabs.pending', defaultMessage: 'Manage requests' },
   authorize: { id: 'compose_event.participation_requests.authorize', defaultMessage: 'Authorize' },
   reject: { id: 'compose_event.participation_requests.reject', defaultMessage: 'Reject' },
+  confirm: { id: 'confirmations.delete.confirm', defaultMessage: 'Delete' },
+  cancelEditing: { id: 'confirmations.cancel_editing.confirm', defaultMessage: 'Cancel editing' },
 });
 
 
@@ -136,7 +141,26 @@ const ComposeEventModal: React.FC<IComposeEventModal> = ({ onClose }) => {
   };
 
   const onClickClose = () => {
-    onClose('COMPOSE_EVENT');
+    dispatch((dispatch, getState) => {
+      if (checkEventComposeContent(getState().compose_event)) {
+        dispatch(openModal('CONFIRM', {
+          icon: require('@tabler/icons/trash.svg'),
+          heading: id
+            ? <FormattedMessage id='confirmations.cancel_event_editing.heading' defaultMessage='Cancel event editing' />
+            : <FormattedMessage id='confirmations.delete_event.heading' defaultMessage='Delete event' />,
+          message: id
+            ? <FormattedMessage id='confirmations.cancel_event_editing.message' defaultMessage='Are you sure you want to cancel editing this event? All changes will be lost.' />
+            : <FormattedMessage id='confirmations.delete_event.message' defaultMessage='Are you sure you want to delete this event?' />,
+          confirm: intl.formatMessage(messages.confirm),
+          onConfirm: () => {
+            dispatch(closeModal('COMPOSE_EVENT'));
+            dispatch(cancelEventCompose());
+          },
+        }));
+      } else {
+        onClose('COMPOSE_EVENT');
+      }
+    });
   };
 
   const handleFiles = (files: FileList) => {
diff --git a/app/soapbox/features/ui/index.tsx b/app/soapbox/features/ui/index.tsx
index 701567ccb..8601deaf7 100644
--- a/app/soapbox/features/ui/index.tsx
+++ b/app/soapbox/features/ui/index.tsx
@@ -120,6 +120,7 @@ import { WrappedRoute } from './util/react-router-helpers';
 // Dummy import, to make sure that <Status /> ends up in the application bundle.
 // Without this it ends up in ~8 very commonly used bundles.
 import 'soapbox/components/status';
+import { uploadEventBanner } from 'soapbox/actions/events';
 
 const EmptyPage = HomePage;
 
@@ -384,7 +385,9 @@ const UI: React.FC = ({ children }) => {
       if (e.dataTransfer && e.dataTransfer.files.length >= 1) {
         const modals = getState().modals;
         const isModalOpen = modals.last()?.modalType === 'COMPOSE';
-        dispatch(uploadCompose(isModalOpen ? 'compose-modal' : 'home', e.dataTransfer.files, intl));
+        const isEventsModalOpen = modals.last()?.modalType === 'COMPOSE_EVENT';
+        if (isEventsModalOpen) dispatch(uploadEventBanner(e.dataTransfer.files[0], intl));
+        else dispatch(uploadCompose(isModalOpen ? 'compose-modal' : 'home', e.dataTransfer.files, intl));
       }
     });
   };
diff --git a/app/soapbox/reducers/compose_event.ts b/app/soapbox/reducers/compose-event.ts
similarity index 100%
rename from app/soapbox/reducers/compose_event.ts
rename to app/soapbox/reducers/compose-event.ts
diff --git a/app/soapbox/reducers/index.ts b/app/soapbox/reducers/index.ts
index c691aebaa..1556e658a 100644
--- a/app/soapbox/reducers/index.ts
+++ b/app/soapbox/reducers/index.ts
@@ -19,7 +19,7 @@ import chat_message_lists from './chat-message-lists';
 import chat_messages from './chat-messages';
 import chats from './chats';
 import compose from './compose';
-import compose_event from './compose_event';
+import compose_event from './compose-event';
 import contexts from './contexts';
 import conversations from './conversations';
 import custom_emojis from './custom-emojis';