A murder inquiry has begun after a man died following a fight outside a supermarket in east London.
The dead man suffered head injuries in a fight with another man in Upper Clapton Road, Hackney at 1800 BST on Saturday.
He collapsed and was taken to hospital but died nine hours later.
Police believe the two men may have been minicab drivers arguing over picking up a fare at Netto supermarket and are asking anyone who saw the fight to contact them.
They arrested a 39-year-old man at his home in Ilford, Essex at 0400 BST on Sunday.
The victim has not yet been formally identified although his family have been told.
A post-mortem and inquest have yet to be arranged.