A Sudanese immigrant was arrested after a video showed him trying to behead a man in the middle of a Belfast street in the United Kingdom, drawing national outrage.

Police were called at around 10:30 p.m. local time on Monday. A graphic video posted on social media showed the suspect, estimated to be in his 30s, straddling a man in his 40s pinned on the ground, whose face was covered in blood. The attacker was brandishing a knife and shouting, and after warnings from bystanders, proceeded to start sawing the struggling victim’s neck. At least three bystanders intervened to save the victim’s life, with one hitting the attacker over the head with a shovel.