A man was air-lifted to hospital from outside the Hampstead Heath Lido after he was stabbed in a fight this weekend.
The 25-year-old man was found by police with stab wounds next to the Lido on Gordon House Road at 6pm on Sunday after reports were received of a group fighting on the Heath.
He was taken to a central London hospital and his condition is understood to be stable.
Witnesses reported that an area of the Heath from the athletics track to Gospel Oak tube station was cordoned off for some of Sunday evening.
Two 19-year-olds have been arrested on suspicion of assault.
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