A SERIOUS crash involving a bus has caused a road closure in Oakley.

The collision occurred on the B3400, Andover Road, at around midday today (Thursday).

A spokesman for Hampshire police confirmed that the road is closed in both directions.

It expected that the road will be closed for a long period. 

Drivers are advised to avoid the area and use alternative routes.

READ: Eleven injured in bus crash in Oakley

South Central Ambulance Service (SCAS) are on the scene, along with the Hampshire and Isle of Wight Air Ambulance Service.

A post on South Central Ambulance Service's Facebook has said that four ambulances, three rapid response vehicles, a hazardous area response team and the critical care car from Hampshire and Isle of Wight Air Ambulance at the scene.

Crews from Hampshire Fire and Rescue Service are also dealing with the crash. 

Further information from SCAS has indicated that more ambulances are due to attend the scene, with as many as 10 ambulances either at or heading to the scene. The service has said that this may affect their ability to respond to other incidents.