An Afghan refugee in Germany,who had attacked travellers in a train with an axe and slashed 5 people, has pledged allegiance to the Islamic State, according to a video released by the organisation today. The Amaq news agency which belongs to the Islamic State released the video. According to a report in the Washington Post, "In a video issued by the Islamic State's Amaq news agency, the teenager identifies himself as a "soldier of the caliphate" and threatens further attacks by the group "in every village, city and airport," according to a translation by the SITE intelligence group, which tracks jihadist organizations."

In the video, the youth says, "I lived among you and in your houses. I will slaughter you in your houses and tear you apart. I will make you forget the horror of the France operation," It is believed that the 'French Operation' refers to the recent attack in Nice. 

The report on Washington Post provided further details on the video and the reaction of the authorities in Germany, "Tuesday's video, which lasts 2 minutes 20 seconds, appeared to have been shot on a smartphone held by the youth. In it, he gestures with a black plastic-handled kitchen knife about three or four inches long. A bare white closet is behind him, and a blue shade is pulled over a window. Bavarian Interior Minister Joachim Herrmann identified the Afghan only by his initials, "R.A." German media widely reported his name as "Riaz A." But the Islamic State identified him in the video as Muhammad Riyad. Erik Ohlenschlager, chief prosecutor in the Bavarian town of Bamberg, said authorities were evaluating the recording and could not yet confirm whether the man in the video and the attacker were the same person.  German authorities earlier said they found no evidence of direct communication between the militant group and the attacker, who was fatally shot by police after leaving the train in southern Germany. "