A driver has sustained serious injuries after a crash on a motorway.

The man, in his 20s and from Watford, is in hospital after his blue Fiat Punto was involved in a collision with a lorry on the M1 at around 5.30am yesterday (Wednesday).

It happened between junction 8 for Hemel Hempstead and j6A for the M25.

The motorway was shut southbound for several hours due to police investigation work and a diesel spillage.

Police say a number of people stopped at the scene of the crash but had left before speaking to officers.

Anyone who saw the incident or has any information is asked to contact police via 101 quoting Operation Swiftsure or you can contact Crimestoppers anonymously on 0800555111.