A collision on the A12 London bound carriageway has blocked a lane.

Four vehicles involved in a collision are blocking the outside lane between junction 12 (Shenfield) and junction 11 (M25/Brook Street) Traffic is slow back past junction 12.

A12 London Bound – accident involving four vehicles blocking the outside lane between J12 (Shenfield) and J11 M25/Brook Street) – traffic is slow back past J12.

 

UPDATE: This incident has cleared but traffic remains slow.