Twitter users condemn London subway stabbings with hashtag #YouAintNoMuslimBruv

A man brandishing a knife injured two people while at east London’s Leytonstone subway, reportedly shouting, “This is for Syria!”

Police released no information about the man’s identity or possible motive, but the United Kingdom is facing stepped-up threats from ISIS – especially after British fighter planes began flying sorties against ISIS targets in Syria this week.

London police said the man was taken to a nearby precinct.

“One man has sustained serious knife injuries; these are not believed at this stage to be life-threatening”. A second man was also injured, but did not require medical help. Sky News reported that witnesses had said the lone suspect spoke of Syria and had “apparently shouted, ‘This is for Syria, ‘” although it did not quote anyone.

Commander Richard Walton, who leads the Met’s Counter Terrorism Command. “I would continue to urge the public to remain calm, but alert and vigilant”.

Video footage captured the incident.

Salim Patel, who runs a shop at the station, told reporters the attacker punched and kicked a man before stabbing him.

“Alexander Edwards responded: “#YouAintNoMuslimBruv shouted by Muslims at the #Leytonstone attacker.

“We are treating this as a terrorist incident”.

Saturday’s attack came at the end of a week in which the British parliament voted to extend air strikes on the Islamic State jihadist group from Iraq into Syria. “The person was shouting, ‘Help me, help me, somebody help me.’ He was in agony”.

“As I walked down I just saw a lot of people running but I ignored it and kept walking to get my train, but suddenly what I saw I couldn’t believe my eyes and what I saw was I guy with a knife and a dead guy on the floor”, witness Laurynas Godvisa told the Express.

Graphic footage of the attacks posted online appeared to show a large pool of blood spattered on the station floor – with the knifeman confronting several people before he was eventually tasered by police off camera.

‘Then the attacker took a knife out and started stabbing him as he lay on the floor’.

Scotland Yard’s counter-terrorism command is investigating the attack. A spokeswoman for Prime Minister David Cameron’s Downing Street office said: “We are monitoring the situation closely as further details emerge”.

The underground station reopened at 3am this morning.