The incident happened shortly after 6am on the M25 clockwise before junction 1B A282.

One lane has been closed with tailbacks to junction 30 A13 for Lakeside back across the QE2 Bridge.

Essex travel news wrote on Twitter: “M25 clockwise – slow traffic from before J29 (A127) over the QE2 bridge into Kent – caused by an accident just before J1B (Dartford) blocking one lane.”

This is a developing news story, more to follow.