THE A40 in Monmouth is down to one lane following a two vehicle collision.

Fire crews from Usk, Monmouth and Malpas were called at 6.53pm today to the scene of the accident between Mitchell Troy and the Gibraltar Tunnels, Monmouth.

The northbound dual carriageway is down to one lane.

Gwent Police and South Wales Fire and Rescue Service are still in attendance.

A Gwent Police spokesman said no one sustained serious injuries.