Tragedy has struck in the Upper Hunter with a driver killed following a serious collision with a horse transport truck.
It's believed his Mazda collided with the truck on the New England Highway north of Muswellbrook near Sandy Creek Road at around 10:30am.
Sadly the 78-year-old driving the sedan died at the scene.
The man driving the transport wasn't hurt - however a horse suffered a minor injury in the smash.
A police investigation is underway.