A man is in critical condition after a head-on collision between a truck and a car at Gillieston Heights.
A NSW Ambulance spokesperson said paramedics were called to the collision on Cessnock Road just after 9.30am on Friday. The incident is understood to have occurred at Testers Hollow.
The spokesperson said the driver of the car, believed to be in his 50s, was in a critical condition after suffering a traumatic head injury.
He was John Hunter Hospital via ambulance.
The truck driver sustained minor injuries in the crash.
Emergency services remain on scene. The road is closed in both directions.
Live Traffic NSW reports that vehicles can divert via the Hunter Expressway, John Renshaw Drive, Weakleys Drive and the New England Highway.
"This will add around 15 minutes to your travel time," Live Traffic said.
CLIFTLEIGH TO GILLIESTON HEIGHTS: Cessnock Rd is closed btn Avery Ln and Heyes St due to a car and truck crash. Use Mount Vincent/Buchanan Rd or Old Maitland/Wollombi Rd instead and allow some extra time.— Live Traffic NSW (@LiveTrafficNSW) January 17, 2020