Surrey Police say "the large fire" at Chessington will cause road closures for a "considerable amount of time".
Officers are asking drivers to avoid the A243 as well as the Chessington area.
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A teenager has been arrested after a mass bomb hoax closed hundreds of schools across the UK.
The Metropolitan Police have confirmed the charge following his arrest on Sunday. He will appear at Wimbledon Magistrates’ Court on April 4.
Declan Donnelly will host the show alone when the show returns on March 31 following his partner Ant McPartlin's return to rehab, ITV says.