The site has now been cleared following an accident on Campbelltown Road.
The accident, between two cars, occurred near Edmondson Park about 2.40pm on Friday.
Eastbound traffic was heavy for about 45 minutes, but traffic congestion has started to ease.
There are delays on Campbelltown Road following a serious crash on Friday afternoon.
The accident, between two cars, occurred near Edmondson Park about 2.40pm on June 8.
Eastbound traffic is affected.
Emergency services and RMS crews are at the scene.
Motorists should expect delays, or try avoid the area.