Thousands of tons of rock crashed onto a beach, narrowly avoiding sunbathers.
A huge plume of red dust billowed across the sea after the massive rockfall.
The crash cut off some beachgoers who were there at the time, and a lifeboat was launched to rescue them.
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The heart-stopping moment was captured on camera at Budleigh Salterton, Devon, on Saturday.
“Thousands of tons must have come down,” eyewitness James Walters told Need To Know.
“Police, lifeboat and coastguards were there.
“I don’t think anybody was injured, but they had to close the coast path.”
A spokesperson from Sidmouth Lifeboat said: “Sidmouth Independent Lifeboat was tasked by Solent Coastguard after a significant cliff collapse at Budleigh Beach.
“The crew’s primary objective was to search for anyone caught in the fall zone and to support Beer and Exmouth Coastguard teams already on scene.
“Upon arrival, lifeboat crew members discovered several people stranded on the wrong side of the cliff fall.
“Two individuals were safely transferred back to Budleigh Beach.
“Thank you to all volunteers and agencies involved for their swift response and teamwork.

“Please remember: cliffs along this stretch of coastline are unstable. Keep a safe distance from the base and the edge, and follow all local safety warnings.”
Exmouth Coastguard Rescue team added: “Following assessment earlier after the significant cliff fall, Devon County Council have closed sections of the coastal path.
“Please avoid the area and don’t attempt to circumvent the closures.”
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