The two British ISIS jihadists killed in Syria when they were blitzed by a drone controlled by RAF pilots 3,000 miles away gave away their location when they phoned friends in the UK.
Reyaad Khan, 21, and Rahul Amin, 26, were killed when one of them made a phone call allowing security staff at GCHQ in Cheltenham to intercept the conversation and pinpoint their location in the Syrian desert.
British intelligence agents on the ground then confirmed which car the pair were travelling in and relayed the information back to controllers 3,000 miles away at RAF Waddington in Lincolnshire.
The Sun on Sunday reports defence bosses then gave the go-ahead to bomb the men with Hellfire missiles from an unmanned MQ-9 Reaper drone.
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