A Surrey man is in a critical condition after being stabbed through the window of his car.
Sussex Police said the 33-year-old man, from Horley, received the knife wound while he was in a BMW in North Road, Crawley, at about 0645 BST on Monday.
He was taken to the East Surrey Hospital, Redhill, where his condition is described as critical.
The force has appealed for anyone with information about the incident to contact officers.
Det Insp Sarah Barrett said: "The victim has received a serious knife wound. This is a busy area and we are hoping someone may have seen this incident or the events leading up it."