A teenager has tragically died after being stabbed in a London park, police said.
The victim, 18, was found with fatal injuries on a tennis court in Montrose Park, Edgware at around 6pm on Monday.
Paramedics raced to the scene to try and save him but he was pronounced dead just over an hour later.
Seven males have been arrested on suspicion of offences including affray and attempted murder, the Metropolitan Police said.
They are all in police custody.
Their ages have not yet been released by the force.
A crime scene remains in place and officers are working to determine whether there any further reported injuries.
Anyone lingering in the area is being asked to “leave and go home”, a statement added.
It said: “Officers were called at 17:54hrs on Monday, 31 May to Montrose Park, Edgware, following reports of a group of males fighting.
“Officers responded and found an 18-year-old male suffering from a stab injury in a tennis court area.
“He was treated by London’s Air Ambulance and London Ambulance Service at the scene. Despite their best efforts, he was pronounced dead at 19:19hrs.
“Police are working to inform his next of kin. Formal identification and a post-mortem examination will follow in due course.”