An Isis fighter was killed by his own drone bomb when the hapless jihadi forgot to charge the device's batteries - sending it straight back to him when its power ran low.
His death came during the Battle for Mosul and has been revealed after a security source came forward to share the story.
The source told the Sun: "We learned this idiot had wired up his drone with explosives but was killed when its batteries ran low and it flew home."
"With a weak signal for some reason it detonated over his head."
Isis used drones frequently during the fight for control of the northern Iraqi city of Mosul, which officially ended in 2017.