Police are investigating the murder of a young man in a Burger King restaurant in Wood Green Shopping Centre, north London.
Officers were called to reports of a disturbance at the Burger King restaurant involving youths just after 11pm on Thursday.
A 23-year-old man was pronounced dead at the scene. Police said the man has been formally identified as Pelivan Zekaj, an Albanian national, of Monksfield in the London borough of Islington.
A post-mortem examination on Friday confirmed that the cause of death was a stab wound to the chest.
Police, who said there have been no arrests so far, are continuing to appeal for witnesses and information.