M25 clockwise entry slip road closed at J4 A21 / A224 (Orpington). Due to the closure of the main carriageway between J3 and J5.
A lorry fire is causing delays on the M25.
Two lanes are blocked and traffic is queuing clockwise between J4 A21 / A224 (Orpington) and J5 M26 / A21. lanes one and two closed, with traffic passing in lane three.