UPDATE 3.52pm: Police have confirmed road is impassable - AA.

A portion of the A3052 near Trow Hill is partially blocked due to a crash involving two vehicles.

Traffic has been reported as slow both ways. Ambulances are in attendance at the scene.

The incident was first reported to the AA at 2.42pm, and the traffic alert reads: "Partially blocked and slow traffic... two vehicles involved on A3052 both ways near Trow Hill."