Police are searching for three people who have gone missing in the river Thames.

The Metropolitan police said a swimmer went missing at Shadwell Basin on Tuesday evening, a second at Waterloo Bridge and a third near Kingston High Street.

Of the incident at Shadwell Basin, police said: “The man, believed to be aged 22 years, was swimming with friends and has not resurfaced.

“Officers and the marine policing unit attended along with other emergency service personnel and are searching the area.”

It comes as parts of the UK are in the midst of a heatwave, with temperatures across England exceeding 30 degrees on Tuesday.

On Tuesday, a body was found at a water park after reports that a swimmer had disappeared in a lake in Gloucestershire.

Emergency services were called to Cotswold water park, near Cirencester, at about 1.40pm on Tuesday following reports a swimmer had gone missing.

Police, fire and ambulance crews were at the site, with a National Police Air Service helicopter scrambled to help search for the swimmer.

Gloucestershire police said the body of a man was pulled from the water shortly before 8.50pm. He was pronounced dead at the scene and the coroner and the man’s next of kin have been informed, the force added.