A FUEL tanker laden with 50,000 litres of petrol was one of seven vehicles involved in a smash in Queanbeyan on Wednesday afternoon.
The tanker was caught up in the drama after a 38-year-old Canberra man - who police believe may have suffered a medical episode - lost control of his vehicle on Canberra Avenue.
While the cause of the crash remains under investigation, it is understood the man's Holden Cruze hit a number of vehicles before crossing onto the wrong side of the road and ploughing into at least another two cars before stopping near the intersection of Canberra Avenue and Ross Road.
The incident occurred less than 24 hours after two men were killed following a fuel tanker explosion on Mona Vale Road in Sydney's Northern Beaches.
Two cars struck the tanker amid the mayhem but Queanbeyan Fire Rescue station officer Mark Beachcroft said there had only ever been a remote chance of its load igniting.
"The cars hit in a position where there's a protective barrier to protect the tank in the event of any collision," he said. "The barrier bears the brunt of the impact.
"There was minor damage to the tank but the vehicles have hit in a way that there was a very remote chance of it rupturing."
Queanbeyan Police, meanwhile, are continuing their investigations into the crash after one witness reported seeing the driver at the centre of the drama "passed out" at the wheel.
The man was travelling east on Canberra Avenue before approaching a set of traffic lights near Tharwa Road.
"At a point just short of the intersection it appears the driver had some sort of medical issue, he hasn't stopped and has collided with at least two vehicles at the intersection," Queanbeyan Police acting inspector Nick Hallett said.
"He's travelled onto the incorrect side of the roadway and collided with another two other vehicles and a semi-trailer carrying petrol."
The man was taken to Canberra Hospital following the accident to undergo mandatory medical tests. No one was seriously injured in the crash.
Acting Insp. Hallet urged any witnesses who hadn't yet spoken to police to contact Queanbeyan Police Station.
Related stories: Driver looked 'passed out sick'