Five men sought after 'unacceptable' night of violence in London
Police have said they are investigating Tuesday night's disorder in Hyde Park after a flashmob-style water fight attended by 2,000 revellers descended into violence with one police officer stabbed.
However at around 8:40pm, the police said the large crowd became hostile and bottles were thrown at officers.
Police have released photographs of the suspects, three of whom are wanted in connection with violent disorder in Hyde Park and one over trouble in Marble Arch, and are also calling for anyone with footage of the incidents to come forward.
Officers found themselves to be under attack.
Two other people also suffered stab wounds and were taken to hospital.
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A police spokesman said that one male police officer suffered a head injury and was taken to a central London hospital for treatment.
The police chief said there would be arrests as officers reviewed CCTV and helicopter footage.
Extra officers will be on duty on Wednesday night across London and throughout the weekend.
A second police officer was wounded by a bottle. All the other events over the last two weeks, we've had positive feedback.
The London Evening Standard dubbed the event "the worst outbreak of youth violence since the 2011 riots", in which thousands of people took to the streets across London and other parts of the United Kingdom.
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He said on Twitter: "Unacceptable scenes in Hyde Park last night".
Mr Harrington said police would not tolerate violent behaviour and will be looking into whether any of the incidents were linked.
Crowds were driven back to Marble Arch where around 500 remained until midnight.
Any witnesses or anyone with information to the Hyde Park disorder can call the incident room on 020 8246 0076 or Crimestoppers anonymously on 0800 555 111.
Riot police were then called in to disperse the crowd.
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