diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac9e3d072..a77bef801 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@
 - [Legacy Backup] Fix error when restoring a backup
 - [Home] Fix `user.getAll` error when user is not admin [#3573](https://github.com/vatesfr/xen-orchestra/issues/3573) (PR [#3918](https://github.com/vatesfr/xen-orchestra/pull/3918))
 - [Backup NG] Fix restore issue when a disk has grown [#3910](https://github.com/vatesfr/xen-orchestra/issues/3910)  (PR [#3920](https://github.com/vatesfr/xen-orchestra/pull/3920))
+- [Backup NG] Delete _importing_ VMs due to interrupted CR/DR (PR [#3923](https://github.com/vatesfr/xen-orchestra/pull/3923))
 
 ### Released packages
 
diff --git a/packages/xo-server/src/xo-mixins/backups-ng/index.js b/packages/xo-server/src/xo-mixins/backups-ng/index.js
index 131b4a3c3..b737a0761 100644
--- a/packages/xo-server/src/xo-mixins/backups-ng/index.js
+++ b/packages/xo-server/src/xo-mixins/backups-ng/index.js
@@ -183,7 +183,7 @@ const getJobCompression = ({ compression: c }) =>
 const listReplicatedVms = (
   xapi: Xapi,
   scheduleId: string,
-  srId: string,
+  srId?: string,
   vmUuid?: string
 ): Vm[] => {
   const { all } = xapi.objects
@@ -918,6 +918,7 @@ export default class BackupNg {
   // - [x] possibility to (re-)run a single VM in a backup?
   // - [x] validate VHDs after exports and before imports, how?
   // - [x] check merge/transfert duration/size are what we want for delta
+  // - [x] delete interrupted *importing* VMs
   @defer
   async _backupVm(
     $defer: any,
@@ -1236,6 +1237,14 @@ export default class BackupNg {
 
                 const { $id: srId, xapi } = sr
 
+                // delete previous interrupted copies
+                ignoreErrors.call(
+                  this._deleteVms(
+                    xapi,
+                    listReplicatedVms(xapi, scheduleId, undefined, vmUuid)
+                  )
+                )
+
                 const oldVms = getOldEntries(
                   copyRetention - 1,
                   listReplicatedVms(xapi, scheduleId, srId, vmUuid)
@@ -1572,6 +1581,14 @@ export default class BackupNg {
 
                 const { $id: srId, xapi } = sr
 
+                // delete previous interrupted copies
+                ignoreErrors.call(
+                  this._deleteVms(
+                    xapi,
+                    listReplicatedVms(xapi, scheduleId, undefined, vmUuid)
+                  )
+                )
+
                 const oldVms = getOldEntries(
                   copyRetention - 1,
                   listReplicatedVms(xapi, scheduleId, srId, vmUuid)