Horror multi-vehicle smash shuts down M25 as wrecked cars & debris strewn across four lanes

A HORROR multi-vehicle smash has shut down the M25 - with wrecked cars and debris strewn across four lanes.

The motorway is closed between junctions 22 and 25 after the "serious road traffic collision".

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Motorists have been urged to avoid the stretch between the London Colney and St Albans junctions.

It is currently unknown how many people were injured in the pile-up, which reportedly involved several vehicles.

Snaps show vehicle wreckage scattered across all four lanes of the M25.

Hertfordshire Police said: "The M25 is currently closed between junctions 22 (London Colney) and 21A (North Orbital Road/St Albans).

"This is while emergency services deal with a serious road traffic collision.

"Motorists are asked to avoid the area."

A forensic investigation has reportedly been launched to piece together the events that led to the crash.

Hertfordshire Police has been contacted for comment.

More to follow.