A road in north Dorset is closed after a serious crash involving a car and a motorbike.

The incident happened on the A350 north of Shaftesbury, near the junction for Semley.

Police warn the road may remain closed for a while and advise drivers to consider alternate routes.

The collision scene is over the border into Wiltshire.

Road closures were in place at Shaftesbury and also on the A350 at the junction with the A303. Traffic was being diverted via the A30.