Dramatic video of the stabbing attack at a London subway station on Saturday shows the assailant brutally attacking a man as police arrive on scene carrying Tasers. 

Local police announced they were treating the stabbing as a "terrorist incident," after the assailant reportedly said he was carrying out the attack “for Syria."

The terrorist, identified as a 29-year-old Muslim, managed to injure three people with a knife in the attack near the ticket machines at the Leytonstone underground station. 

After arriving at the scene, officers are heard telling the terrorist to "drop it, drop it you fool" before shooting him with the Taser gun, possibly twice. 

Despite being injured, the terrorist managed to hold on to the knife, waving it around wildly as panicked civilians fled the station. 

Eventually, police were able to kick the knife away from his hand after he collapsed on the ground. 

"You are no Muslim, you are embarrassing," one of the civilians is heard shouting at him.