diff --git a/frontend/coprs_frontend/coprs/logic/complex_logic.py b/frontend/coprs_frontend/coprs/logic/complex_logic.py
index 4c1007298..72ab6c4ea 100644
--- a/frontend/coprs_frontend/coprs/logic/complex_logic.py
+++ b/frontend/coprs_frontend/coprs/logic/complex_logic.py
@@ -1,5 +1,4 @@
 # coding: utf-8
-
 import os
 import datetime
 import time
@@ -126,7 +125,6 @@ def delete_expired_projects(cls):
                 print(e)
                 print("project {} postponed".format(copr.full_name))
 
-
     @classmethod
     def fork_copr(cls, copr, user, dstname, dstgroup=None):
         cls.raise_if_cant_fork(user, copr)
diff --git a/frontend/coprs_frontend/coprs/views/backend_ns/backend_general.py b/frontend/coprs_frontend/coprs/views/backend_ns/backend_general.py
index 59a11c877..87fe14dde 100755
--- a/frontend/coprs_frontend/coprs/views/backend_ns/backend_general.py
+++ b/frontend/coprs_frontend/coprs/views/backend_ns/backend_general.py
@@ -1,5 +1,5 @@
 import flask
-from copr_common.enums import StatusEnum
+from copr_common.enums import StatusEnum, ActionTypeEnum, ActionObjectTypeEnum
 from coprs import db, app
 from coprs import models
 from coprs.logic import actions_logic
@@ -287,8 +287,27 @@ def build_task_canceled(task_id):
 @backend_ns.route("/pending-actions/")
 def pending_actions():
     'get the list of actions backand should take care of'
+    waiting_actions = actions_logic.ActionsLogic.get_waiting()
+    busy_namespaces = set()
+    for action in waiting_actions:
+        if (
+            action.object_type == ActionObjectTypeEnum.COPR
+            and action.action_type == ActionTypeEnum("delete")
+        ):
+            busy_namespaces.add(action.copr.full_name)
+
     data = []
-    for action in actions_logic.ActionsLogic.get_waiting():
+    for action in waiting_actions:
+        if (
+            action.copr.full_name in busy_namespaces
+            and action.action_type != ActionTypeEnum("delete")
+        ):
+            # e.g. copr delete _ && copr fork _; will cause race condition
+            # so don't process new action with the same namespace until delete
+            # action is processed
+            # https://github.com/fedora-copr/copr/issues/2698
+            continue
+
         data.append({
             'id': action.id,
             'priority': action.priority or action.default_priority,
@@ -296,7 +315,6 @@ def pending_actions():
     return flask.json.dumps(data)
 
 
-
 @backend_ns.route("/action/<int:action_id>/")
 def get_action(action_id):
     action = actions_logic.ActionsLogic.get(action_id).one()