Hyde Park is sealed off after three people including a policeman are STABBED and a PC is injured by a bottle as 'water fight' turns violent with youth

Two police officers have been rushed to hospital after being struck by a bottle and stabbed when they tried to disperse a huge water fight in Hyde Park during which rioters chanted 'Black Lives Matter'. Thousands of revellers descended on the central London park to soak up the sun on what was hottest day of the year so far. -- More...