The Highways Agency are warning drivers that the M25 in Essex is closed anti-clockwise between J27 and J25 due to a serious incident involving a number of heavy goods vehicles.
A signed diversion is in operation with all traffic advised to leave the M25 anti-clockwise at J27 and follow the square diversion symbol via the M11, A406 and A10 to rejoin the M25 anti-clockwise at J25.
A second traffic alert has also been issued for motorists travelling along the A12 towards London, to be warned that there is a broken-down abnormal load vehicle close to J21, Witham.
A12 Chelmsford Bypass London bound closed due to car fire between J16 B1007 Stock Road (Galleywood) and J15 A414 Three Mile Hill / Margaretting, congestion to J17 A130 (Howe Green).
One lane is closed, queueing traffic and long delays due to broken down lorry on A12 Northbound at Kelvedon in Essex.
It's between J23 B1024 London Road (Kelvedon South) and J24 B1024 (Kelvedon North), congestion to A138 J19 / A130 Colchester Road / B1137 Main Road / Generals Lane (Boreham Interchange). Travel time is around 40 minutes
A12 Colchester Bypass closed northbound, stationary traffic due to accident, a single vehicle involved between J28 Axial Way (Colchester United Football Ground) and J29 A1232 (Ardleigh).
A12 blocked London-bound due to multi-vehicle accident between J23 B1024 (Kelvedon Bypass) andJ22 B1389 (Witham Bypass).
Severe delays with one lane blocked and stationary traffic due to an accident between a van and a motorcycle just before J11 M25 (Brook Street Roundabout), with major congestion to J14 (Margaretting). Travel time is more than 60 minutes.
Essex police has started extra patrols along the A12 today in an attempt to prevent people throwing objects from bridges on to passing vehicles.
The force has stepped up its patrols because in previous years there's been an increase in incidents between November and January.
Two serious incidents which happened last December are being investigated as attempted murder, but no arrests have been made.
A12 London bound in Essex is partially blocked due to a lorry shedding a load of wood before M25 J28 / A1023 Brook Street J11 (Brook Street Roundabout).
Traffic is slow and a road is blocked due to a collision involving a car and a lorry on A12 Northbound between A138 J19 / A130 Colchester Road / B1137 Main Road / Generals Lane (Boreham Interchange) and J20A B1137 (Hatfield Peverel South).
Three lanes blocked and queueing traffic for two miles due to overturned car on M25 clockwise at J28 A12 (Brook Street Roundabout)