A man in his 40s is in a stable condition in hospital after being chased, then stabbed in the back and head in east Belfast.
The assault happened in the Cregagh Road area on Monday night (3 May) just after 11pm.
Detectives are appealing for witnesses.
Detective Sergeant Duffield said: “We received a report, just after 11pm, that a number of men had chased a man from the Killagan Bend, heading towards the Greenway area.
“When the group managed to catch up with the victim, he was assaulted.
“This was a particularly vicious attack, in which a man, aged in his 40s, sustained a number of stab wounds to his back and head.
“He was taken to hospital by colleagues from the Ambulance Service, where he remains today in a condition which is described as stable,” he said.
“I am appealing to anyone with information to contact detectives on 101, quoting reference number 1809 03/05/21.”
Information can also be provided to Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org.