A man from Sudan has been arrested over a knife attack in Belfast that prime minister Sir Keir Starmer described as “horrific” and “abhorrent”.The man aged in his 30s has been arrested on suspicion of attempted murder following the “brutal” assault on Monday night which left the alleged victim with significant injuries to his face, neck and back, the Police Service of Northern Ireland (PSNI) said.The PSNI has launched a “critical incident” in response to the attack, which was captured on video and appears to show a man stabbing at the victim’s head and neck while he was on the ground.The clip shows people, including one with a hurling stick, intervening to stop the man attacking the victim in the residential area close to the busy Antrim Road in north Belfast.Jane Dalton9 June 2026 13:40Jane Dalton9 June 2026 13:36