Up to eight people are being sought by police investigating the late-night stabbing of a young man at a bus stop at Heathrow Airport.
Police believe the 20-year-old victim was attacked by a large group of men and women at bus stop K on the Northern Perimeter Road just before midnight on Friday.
The victim, who has not been named, was taken to a west London hospital for treatment but his condition is not life-threatening, the Metropolitan Police said.
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No arrests have been made, and officers appealed for witnesses to call the investigating team at Heathrow Police on 07768 526 819.