Second man arrested over suspected hit and run death

The M1 northbound, between Watford and Radlett, was shut for about six hours on 4 December after the man's body was found

A second driver has been arrested after a suspected hit and run on the M1 motorway that forced it to close for about six hours.

The man's body was found close to the hard shoulder of the northbound carriageway between junctions four and five, for Watford and Radlett, on Monday, 4 December, at about 14:30 GMT.

Hertfordshire Police said a 24-year-old man from Hemel Hempstead has been arrested on suspicion of causing death by dangerous driving.

It follows an arrest in December of a man, 28, from Leicester, on suspicion of causing death by dangerous driving, failing to stop and failing to report a road traffic collision.

Both men were have been released on police bail until March, as first reported by the Watford Observer.

Officers believe the man was struck sometime between 04:30 on Sunday, 3 December and 14:30 on the Monday.

A post-mortem examination gave the provisional cause of death as a traumatic head injury.