The 'voice of ISIS', who narrated the terror group's honorific execution videos in English, has been captured by Kurdish forces.

The jihadi, who speaks with a Canadian accent, is believed to have recorded an English-language broadcast for ISIS claiming responsibility for the November 2015 terrorist attacks in Paris.

He's also believed to be the masked host of the notorious propaganda film titled Flames of War, where he presides over the execution of six men who are made to dig their own graves.

He claims that his name is Mohammed Abdullah Mohammed but a professor researching extremism believes he is actually called Abu Ridwan.

The FBI have been trying to identify him since 2014 when they issued an appeal for information to the public.

Professor Amarnath Amarasingam visited Syria as part of his research into extremism and was told that the man behind the mask was Canadian Ridwan.

Dr Amarasingam added that he is convinced Ridwan is 'the voice of ISIS'.

He said: 'As soon as I heard the radio broadcasts and Flames of War, I thought he sounded distinctly Canadian.

'I kept nursing this theory with each subsequent ISIS media release, but could never find proof.

'It was only after I went to Syria in October that I got confirmation from another imprisoned fighter that the narrator was indeed Canadian.

'After the arrest, I tweeted a photo from a video that the Kurdish media had released.

'A childhood friend of his, who knew him until the moment he left for Syria, sent me a message saying that he knew who the captured fighter was.

The jihadi, who speaks with a Canadian accent, is believed to be the 'voice of ISIS' and behind several sick propaganda videos

He's also believed to be the masked host of the notorious propaganda film titled Flames of War, which saw prisoners dig their own graves

He claims that his name is Mohammed Abdullah Mohammed but a professor researching extremism believes he is actually called Abu Ridwan

'I asked him what his name was and he said they used to call him Abu Ridwan when he lived in Toronto. It was the same name we learned in Syria.'

In a taped interview, the captive jihadi said it had become very crowded inside ISIS-held territory and that many soldiers had decided to leave, seeking to escape to Turkey.

He also reported that recent days had seen an increase in air and drone strikes against jihadi strongholds.

Ridwan claimed to have spent 'a few years' in Raqqa, the terror group's capital, and says he was captured by the Kurds on Sunday 'after attacking one of their points and entering into a gun battle with them'.

Describing his own background, he claims he is Ethiopian and travelled from Canada to Syria via Turkey in 2013.

His fate in unclear.