The Hunter's Westpac Rescue Helicopter has been called to a serious crash at Hexham.
A truck has collided with a motorbike in the southbound lanes of Maitland Road near the BP Service Station.
It's believed the bike was dragged underneath the truck for some distance.
Paramedics are treating the 21-year-old male rider at the scene.
It's believed he's suffered multiple fractures but he is conscious and breathing and is about to freed and flown to hospital.
