A body has been found in a search for a teenager who got into trouble while swimming in a river in Northumberland.

The body was discovered by Northumberland Police’s marine unit.

The force said: “Formal ID has yet to take place but we believe it to be the missing boy.

“This is a tragic update that we hoped we’d never have to give.

“His family are being supported by officers & our thoughts are with them at this awful time.”

The boy was found in a river near Ovingham in Northumberland and police said he was found after an extensive search.

It comes as the UK is expected to reach record temperatures on Monday and Tuesday, with officials advising people to stay indoors.

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Met Office forecasters issued a red warning for Monday and Tuesday in an indication of temperatures projected to soar to more than 40C.

On Sunday, the College of Paramedics chief executive Tracy Nicholls warned the “ferocious heat” the UK is predicted to experience over the next few days could lead to deaths.

She told Sky News’s Sophy Ridge On Sunday programme: “This isn’t like a lovely hot day where we can put a bit of sunscreen on, go out and enjoy a swim and a meal outside.

Keep out of the sun between 11am and 3pm and avoid physical exertion

Drink plenty of fluids and avoid excess alcohol

Close curtains in rooms that face the sun

Never leave anyone in a parked car – and check in on elderly and vulnerable neighbours

Walk in the shade, apply sunscreen and wear a wide-brimmed hat

Check medicines can be stored according to instructions – and check that your fridges, freezers and fans are working properly

“This is serious heat that could actually, ultimately, end in people’s deaths because it is so ferocious. We’re just not set up for that sort of heat in this country.”

The UK Health Security Agency raised its heat health warning to Level 4 – a “national emergency” – on Friday.

Level 4 is reached when “a heatwave is so severe and/or prolonged that its effects extend outside the health and social care system”

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