A teenager has died after being attacked near Wembley Stadium
The boy, in his late teens, is believed to be the first youth murdered in the capital in 2017.
Police were called to Fulton Road in north-west London at around 1.15am on Friday following reports that a man had been assaulted.
Officers and London Ambulance Service attended and found a male suffering from "assault-related injuries". He died at the scene shortly afterwards.
A man in his 20s has been arrested on suspicion of murder and is being questioned at a north London police station.
Officers are informing the victim's next of kin.
A post-mortem examination and formal identification have yet to take place.
Anyone with information is urged to contact police on 101 or Crimestoppers anonymously on 0800 555 111.