Born Mohammed Emwazi, he was known as the executioner of the jihadist group appearing masked in a string of videos showing the beheadings of Western hostages.

In its online magazine Dabiq, the group yesterday said Emwazi was killed on November 12 "as the car he was in was targeted in a strike by an unmanned drone in the city of Raqa, destroying the car and killing him instantly".

The US military had said at the time that it was "reasonably certain" he had been killed in the strike.

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