Emergency services are working to free a 'severely trapped' driver after their truck collided with a car on the Hawkesbury River Bridge near Mooney Mooney

Emergency services are working to free a ‘severely trapped’ driver after their truck collided with a car on a bridge north of Sydney. 

Emergency services were called to the Hawkesbury River Bridge near Mooney Mooney, about 58km north of Sydney, just before 7.20am on Thursday following reports of a crash. 

It’s understood a truck and a car collided in the southbound lanes, trapping one of the drivers.

Fire and Rescue NSW Superintendent Adam Dewberry said crews were working to free the driver of the truck who was ‘severely trapped’. 

‘We have a very serious crash, someone severely trapped in one of the vehicles, ambulance paramedics are on the scene stabilising,’ Mr Dewberry said on 2GB.

‘Firefighters are working with the paramedics to start to work out how to rescue this person out of the vehicle.

‘That includes cutting and pushing of the vehicle to gain access to it so they can treat the injuries and then get them out and into hospital as soon as possible.’

The condition of the driver is not yet known. 

Emergency services are working to free a 'severely trapped' driver after their truck collided with a car on the Hawkesbury River Bridge near Mooney Mooney

Emergency services are working to free a ‘severely trapped’ driver after their truck collided with a car on the Hawkesbury River Bridge near Mooney Mooney

Emergency responders have also called a Toll rescue helicopter to the scene.

The M1 Pacific Motorway southbound direction has been closed as emergency crews work to free the driver. 

The collision has caused massive delays for the peak-hour morning commute, with traffic at a standstill for kilometres and queuing past Calga. 

Authorities have urged drivers to avoid the area or to use diversions via the Mount White interchange exit for the Old Pacific Highway. 

Northbound traffic has also been impacted, with congestion already stretching for three kilometres. 

Live Traffic NSW advises the diversion is suitable for ‘light vehicles only’, with heavy vehicles being parked. 

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