A bus driver that caused an accident on the Princes Highway at Dunmore while doing a U-turn last week may have missed a turn-off.
The Premier Illawarra Route 71 bus was travelling south along the Princes Highway at around 2pm on Thursday when it tried to use a U-turn crossing signposted as only for emergency services.
The crossing features a No U-turn sign and is located immediately south of the Riverside Drive exit - which is where the Route 71 is supposed to travel.
A police spokesman said a ute ran into the rear of the bus which blocked the lane after it got stuck in the crossing due to a dip in the road.
The spokesman said investigations were continuing and added it was an offence for vehicles to disobey the no U-turn sign.
"Transport operators who provide contracted services to the NSW government are also subject to the normal regulatory and law enforcement in NSW," a Transport for NSW spokesman said.
The Office of Transport Safety Investigations (OTSI) is responsible for looking into crashes involving services delivered under a NSW government contract.
It is understood the OTSI is not investigating the incident.
Premier Illawarra declined to comment.