An entry slip-road to the M25 is still closed after a lorry over-turned in Rickmansworth this morning.

Hertfordshire Constabulary said the lorry rolled on to its side at around 7.30am this morning and police are still trying to recover the vehicle- more than five hours after the lorry over-turned.

The lorry was the only vehicle involved and Natalie Dearman, spokesman for Hertfordshire Constabulary, said it "did not look like the driver was injured".

Ms Dearman said: "It looks as if we are still at the scene trying to recover the vehicle.

"Part of the lorry is upright, but part of it is still over-turned."

The Highways Agency has been called to the scene because there is some damage to a lamppost.

Police are investigating the cause of the incident.