A stabbing attack on the London subway system on Saturday was called a "terrorist incident" by local police on Monday.
"We are treating this as a terrorist incident. I would urge the public to remain calm, but alert and vigilant," said Commander Richard Walton, who leads the counter-terrorism unit,
Fox News reported. "The threat from terrorism remains at severe, which means that a terrorist attack is highly likely.”
Muhyadin Mire, 29, from the London suburb of Leytonstone, appeared in court Monday.
He was charged with attempted murder for allegedly stabbing a 56-year-old man at Leytonstone Underground station in east London around 7 p.m. on Saturday. The man was hospitalized with serious but non-life-threatening injuries, and two other victims suffered minor injuries during the incident.
Mire reportedly shouted "this is for Syria" during the alleged attack,
according to Sky News.
He was reportedly subdued by a police stun gun and arrested.
In video footage of the stabbing and subsequent police takedown, onlookers can be heard shouting "You ain't no Muslim, bruv! You're no Muslim, bruv! You ain't no Muslim!" as well as "Yes! Stupid idiot!"
Police detectives reportedly searched a residential address connected to Mire as part of their investigation on Sunday afternoon.
According to ABC News, Mire's cell phone was named "Die in Your Rage Crusader." The U.K.'s Westminster Magistrates Court revealed further that also found on the phone were "images and flags related to ISIS, material on the recent attacks in America, images of orange jump suit wearing Islamic State prisoners, images related to the recent attacks in Paris, and images of a British police exercise involving an active shooter scenario."
The stabbing comes just days after Britain announced airstrikes against the Islamic State.
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