message failed to send on facebook messenger

how do you delete “”failed”” messages on facebook messenger? I tried to click on the message to delete it and there is no option to do so, I even tried to swipe to the side to hit “see more” but it still does not give me an option to do so but all the other messages that ain’t “”failed messages”” i can swipe to the side to delete an also the “”see more”” option works but will not work for “”failed messages””. can someone please help me figure out how to do this? please an thank you