An urgent investigation has been launched following the fatal stabbing of a man in South Hampstead.
Police were called at around 11.45pm on Thursday, 25 July, to Boundary Road, NW8.
Officers attended and found a 20-year-old man and a 22-year-old man suffering stab injuries.
Both men were taken by London Ambulance Service to a London hospital, where the 20-year-old man was pronounced dead at 12.37am.
Officers believe they know his identity and are in the process of informing his next of kin.
A post-mortem examination and formal identification will be arranged in due course.
The 22-year-old man is not thought to have been critically injured.
There has been no arrest at this stage and an urgent investigation is underway.
Anyone with information is asked to call police on 101 quoting CAD 10016/july25,
To remain anonymous, call Crimestoppers on 0800 555 111.