Police are seeking two female witnesses after a 37-year-old man was stabbed in Hartlepool.
It is believed the victim was assaulted by four men in Chatham Road at 2130 BST Monday. The men then left the scene in a black BMW saloon car.
Police said two women in a red Mercedes Coupe, outside Hallidays store at the time, could have information.
The victim, who required surgery on his left shoulder, has since been released from University Hospital of North Tees.