Updated story (Tuesday, 6.17pm):
The site has now been cleared following a two-vehicle accident on Narellan Road this afternoon.
Original story (Tuesday, 5.14pm):
There are delays on Narellan Road following an accident this afternoon, March 21.
Emergency services were called out to an accident involving a truck and car at about 5.05pm on Narellan Road near Kellicar Road.
One westbound lane is closed and there are heavy traffic conditions in the area.
RMS personnel and emergency services crew are at the scene.
More to come.