Three people, including a police officer, have been stabbed in London’s Hyde Park after a water fight got out of control.
A second police officer was wounded by a bottle. The officers are in hospital and their injuries are not life-threatening.
The other two people were both taken to hospital. One has injuries that are not life-threatening but the condition of the second is unclear.
Police were at the park’s Serpentine from 3pm after a large number of people gathered for the water fight.
A Met Police spokesman said that at about 8.40pm parts of the crowd became “hostile” and began to throw things – including bottles – at officers.
Officers stayed at the park until the crowds had left by around 2.20am in the morning.
It is not yet clear what sparked the trouble but some people who said they were at the gathering blamed police.