Traffis is clearing after a crash on the M1 left long delays.

The M1 was crawling for miles after a crash involving two vehicles near Watford at around 7am.

The collision happened in lane 3 on the southbound carriageway, just after junction 5 for Watford.

Traffic officers helped clear the vehicles to the hard shoulder but the incident left huge tailbacks.

At around 8am, the M1 was slow southbound from Dunstable all the way down to Watford, with queues very heavy from Hemel Hempstead.

The A405 both ways between Garston and Chiswell Green, and the A41 between Bushey and Elstree were affected too.

As of 9.30am, the M1 is clear at Watford, and so is the A41, but it remains slow on the A405 towards the M1 in Bricket Wood.