A knifeman slashed a man's throat at a busy London tube station and allegedly shouted 'this is for Syria' before being Tasered by police in what has been described by Scotland Yard as a terrorism attack.
The victim suffered serious knife injuries at Leytonstone underground station shortly after 7pm. Eyewitnesses claimed they could hear 'this is for Syria' and 'all of your blood will be spilled' during the terrifying attack.
After reportedly slashing his victim's throat, the man allegedly threatened several other passengers before being confronted by a number of un-armed police officers. The officers ordered the man to drop his weapon, who continued to wave the large knife.
The incident has now been handed over to the Metropolitan Police's Counter Terrorism Command.
The victim suffered serious, non life-threatening knife wounds while two others were injured.
Head of Scotland Yard's Counter Terrorism unit, Commander Richard Walton said;
'We are treating this as a terrorist incident. I would urge the public to remain calm, but alert and vigilant.
'The threat from terrorism remains at severe, which means that a terrorist attack is highly likely.
'I would appeal to anyone who was in the vicinity of Leytonstone underground station earlier this evening at around 7pm who saw anything suspicious to call the anti-terror hotline on 0800 789 321.
'Anyone who may have captured video or photographic footage of the incident is also urged to make contact with the Counter Terrorism Command via the Anti Terror hotline. '