A bridge on State Highway 50 in Central Hawke’s Bay is blocked after a truck hit the side of the bridge about 12.30pm.

One of the two occupants of the crash is being treated in a moderate condition by ambulance staff and the bridge over Mangaonuku Stream, between Tikokino and Maraekakaho, is expected to be closed for several hours, until the truck can be removed.

The road has been closed at the intersections of State Highway 50 and Maraekakaho Road, and State Highway 50 and Tikokino Road.

Motorists planning to travel in the area are advised to use State Highway 2 as an alternative.

One of the occupants had initially been trapped in the vehicle.