Four men have been stabbed during a fight at an east London music festival.
Two of the victims targeted at Garage Nation festival in Hainault Forest Country Park on Saturday were airlifted to hospital.
One of them, a 26-year-old, may have life-changing injuries, the Metropolitan Police said.
Officers believe the men were knifed during a fight in the VIP area before a group of male suspects ran towards the main entrance.
The other victims had less serious “stab and slash” wounds, the Met said.
The second victim who was airlifted to hospital, a 22-year-old, has non life-threatening injuries.
The third man went to an east London hospital with a less serious stab wound and has since left hospital.
The fourth was treated at the scene by medics and left before police arrived.
The Met were called at 19:35 BST and London Ambulance Service and London’s Air Ambulance also attended.
There have been no arrests and inquiries continue.
There were 15,000 people expected at the festival and more than 100 garage, house and RnB artists were performing, according to the event website.
Festival organisers have been contacted for comment.