diff --git a/pkg/repository/udmrepo/kopialib/lib_repo.go b/pkg/repository/udmrepo/kopialib/lib_repo.go
index 2290c57f6..94729ddbc 100644
--- a/pkg/repository/udmrepo/kopialib/lib_repo.go
+++ b/pkg/repository/udmrepo/kopialib/lib_repo.go
@@ -745,6 +745,14 @@ func (kr *kopiaRepository) DeleteSnapshot(ctx context.Context, id udmrepo.ID) er
 
 		_, err = kr.GetSnapshot(ctx, id)
 		if err != nil {
+			// The snapshot was already deleted, e.g. by a backup deletion that was
+			// interrupted after deleting it, so there is nothing left to do.
+			if errors.Is(err, snapshot.ErrSnapshotNotFound) {
+				if kr.logger != nil {
+					kr.logger.Infof("Snapshot %s is not found after repo refresh, it is already deleted", id)
+				}
+				return nil
+			}
 			return errors.Wrap(err, "error getting snapshot after repo refresh")
 		}
 	}
diff --git a/pkg/repository/udmrepo/kopialib/lib_repo_test.go b/pkg/repository/udmrepo/kopialib/lib_repo_test.go
index af704ca2e..519ac916b 100644
--- a/pkg/repository/udmrepo/kopialib/lib_repo_test.go
+++ b/pkg/repository/udmrepo/kopialib/lib_repo_test.go
@@ -1719,14 +1719,25 @@ func TestDeleteSnapshot(t *testing.T) {
 			expectedErr: "error refreshing repo on snapshot not found: fake-refresh-error",
 		},
 		{
-			name:       "snapshot not found in cache, refreshed, but still not found",
+			name:       "snapshot not found in cache, refreshed, but still not found, so it is already deleted",
 			snapshotID: udmrepo.ID("fake-id"),
 			mockRepo: func(r *repomocks.MockRepository) {
 				r.On("GetManifest", mock.Anything, manifest.ID("fake-id"), mock.Anything).Return(nil, manifest.ErrNotFound).Once()
 				r.On("Refresh", mock.Anything).Return(nil).Once()
 				r.On("GetManifest", mock.Anything, manifest.ID("fake-id"), mock.Anything).Return(nil, manifest.ErrNotFound).Once()
 			},
-			expectedErr: "error getting snapshot after repo refresh: error getting snapshot manifest: snapshot not found",
+		},
+		{
+			name:       "snapshot not found in cache, refreshed, then get snapshot fail",
+			snapshotID: udmrepo.ID("fake-id"),
+			mockRepo: func(r *repomocks.MockRepository) {
+				r.On("GetManifest", mock.Anything, manifest.ID("fake-id"), mock.Anything).Return(nil, manifest.ErrNotFound).Once()
+				r.On("Refresh", mock.Anything).Return(nil).Once()
+				r.On("GetManifest", mock.Anything, manifest.ID("fake-id"), mock.Anything).Return(&manifest.EntryMetadata{
+					Labels: map[string]string{manifest.TypeLabelKey: snapshot.ManifestType},
+				}, errors.New("fake-get-error")).Once()
+			},
+			expectedErr: "error getting snapshot after repo refresh: error getting snapshot manifest: unable to find manifest entries: fake-get-error",
 		},
 		{
 			name:       "snapshot not found in cache, refreshed, found, and delete succeed",