UPDATE 5.35pm The scene has now been cleared, but southbound traffic remains heavy.
5.30pm An Ambulance NSW spokeswoman said one person has been taken to hospital in a stable condition.
5pm Traffic is delayed on the Princes Highway at Yallah following a three-car accident involving an off-duty police officer.
One northbound and one southbound lane are closed and traffic is heavy in the southbound direction, with cars banked back to Fowlers Road.
The accident occurred at about 4.40pm on Thursday.
Lake Illawarra police duty officer Inspector Andrew Koutsoufis said one person had been taken away by paramedics, but no-one had been seriously injured.
One car has been towed.
‘‘It’s causing a few traffic issues considering the time,’’ he said.
Motorists are urged to exercise caution and to expect significant delays.