Turkish authorities have detained a suspected close associate of the notorious Islamic State (IS) group militant known as "Jihadi John".
Turkish authorities have detained a suspected close associate of the notorious Islamic State (IS) group militant known as "Jihadi John" who Washington believes was likely killed in a drone strike in Syria, a Turkish official said Friday.
The official told AFP that Aine Lesley Davis, like "Jihadi John" a British citizen who guarded foreign prisoners in Syria, was believed to be among several Islamist suspects detained in a swoop in Istanbul and was now being held by the Turkish authorities.
Turkey was "99 per cent certain" that the man detained was Davis, the official said, adding that this had already "been confirmed by the initial data".
The official described Davis as the "closest associate" of "Jihadi John".
Davis, a London-born British Muslim who turned to Islamist militancy, has been described by British media in the past as a key figure in the network of IS in Syria.
The official did not give further details over the arrest but noted it had come just as Turkey prepares to host world leaders for the G20 summit in its southern resort city of Antalya on Sunday and Monday.
"We are investigating if this suspect came for an attack," said the official, without specifying further. Davis had previously been assumed in media reports to be at large inside Syria.
"This shows that Turkey is facing a great risk to its national security," said the official.
"We expect an active response from the international community," the official added.
"Jihadi John", whose real name is Mohammed Emwazi, is the masked figure who appeared in a string of graphic videos showing the beheading of Western hostages.
He was targeted in a combined British-US operation Thursday in Raqa, the de facto IS capital in war-torn Syria.
The US military said Friday it was "reasonably certain" that the notorious militant had been killed in the drone strike.