A fuel leak has caused a collision between a car and a lorry causing two lanes to be closed on the M25 in the Brentwood area.
Police are advising motorists to avoid the anticlockwise carriageway between Brook Street and the M11.
Officers were alerted at 12.42pm today after reports of the crash between the Rover 75 and the lorry.
The collision resulted from a leak of fuel from the lorry, Essex Police said, and no-one is thought to be injured.
Firefighters and the Highways agency are at the scene dealing with the fuel spillage.
Police predict there will be congestion in the area for a substantial amount of time.
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