A man has died after an alleged fight in the streets of east London.
The Metropolitan Police said officers were called to Church Lane in Leytonstone just before 11pm on Sunday.
They found two injured men, both in their 20s.
One died at the scene and the second was taken to hospital, where he remains in a non-life-threatening condition.
Police believe they know the identity of the man who died but are awaiting formal identification and confirmation his next of kin have been informed.
A post-mortem examination will be arranged.
No arrests have been made.
Scotland Yard said an urgent investigation is underway.
Police cordons are in place in Church Lane and additional officers will be deployed to the Leytonstone area, the force added.