Police are investigating whether an asylum seeker living in Germany fought for Islamic State, it has been reported.

The Syrian man, who lives in a shelter in the north-east region of Brandenburg, allegedly told other refugees he had been a member of ISIS.

German newspaper Welt am Sonntag, reported that the man was filmed boasting about his blood-thirsty past.

The Syrian man accused of having fought for ISIS lives in a shelter in the north-east region of Brandenburg

Investigators are now trying to determine whether the Syrian was a member of ISIS, the newspaper reported.

Germany's Federal Criminal Police Office said the suspect was filmed by other refugees boasting about having killed for the terrorist group.

The Syrian man, who lives in a shelter in the north-east region of Brandenburg, was filmed allegedly boasting about his blood-thirsty past

But the authorities stressed they only had the word of others and are still checking to see if the allegations have any merit.