Motorists have been warned of hour-long delays after a crash and oil spillage on the M25 near Watford.

The collision earlier this morning (Tuesday) happened on the anticlockwise carriageway between junctions 19 and 18.

It caused roughly eight miles of congestion with National Highways urging people to plan ahead before using the route.

 

The oil spillage has now been treated but one lane was still closed to enable recovery of a stricken vehicle.

HCC Highways has warned of "long delays" around Watford and Croxley Green following the M25 crash.

 

It is currently unclear if anyone was injured.

Emergency services have been contacted for more details.