Update: 1245 hrs

Delays on M11 London-bound between J7, A414 (Harlow) and J6 M25, because of an accident involving a car and an ambulance earlier on.

All lanes have been re-opened.

Heavy traffic on M25 anticlockwise at J27 M11.

Incident: 1200 hrs

M11 partially blocked and queuing traffic London-bound between J7, A414 (Harlow) and J6 M25, because of an accident involving a car and an ambulance.