11.50am ACCIDENT UPDATE from Lake Macquarie Police:
Two people have been injured, one critical, after four cars collided near Lake Macquarie this morning.
About 6.45am (Thursday 27 May 2021), emergency services were called to the northbound lanes of the M1 Motorway at Cooranbong, about five kilometres north of the Mandalong Road exit, following reports of a crash between four cars.
NSW Ambulance paramedics treated a man aged in his 70s – before he was airlifted to John Hunter Westmead Hospital in a critical condition.
A second male, believed to be aged in his 50s from a different vehicle was also treated at the scene by NSW Ambulance paramedics before being taken to John Hunter Hospital in a stable condition.
Officers attached to Lake Macquarie Police District and Traffic and Highway Patrol attended and established a crime scene that will be examined by the Crash Investigation Unit to determine the circumstances surrounding the incident.
It is expected there will be traffic diversions in place for some time while specialist police conduct an examination of the crash site.
As inquiries continue, police are urging anyone who witnessed the incident or has dashcam vision to contact police.
Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000.
Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages.
EARLIER: An accident on the M1 at Mandalong has closed northbound lanes. All northbound traffic is being diverted off the M1 and through Morisset. There are very significant delays through Morisset, Wyee and Cooranbong and on the main road to Toronto. Please avoid the area and delay travel if you can.