A number of people are being treated for breathing difficulties at the Olympic Park in Stratford.
A number of people have been injured following a gas leak at the London Aquatics Centre.
The Queen Elizabeth Olympic Park said on Twitter it involved “the release of a gas” at the centre, causing the area to be evacuated and cordoned off.
It said paramedics were treating “a number of patients”, with casualties suffering from breathing difficulties.
London Ambulance Service confirmed it was attending the gas leak and would provide updates.
Mayor of London Sadiq Khan said: “I remain in close contact with our emergency services who are dealing with a gas-related incident at the London Aquatics Centre this morning.”
He urged people to avoid the area.
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