A motorcyclist was injured late this morning in a crash on State Highway 2 near Melling Link.
He was taken to hospital in a serious condition.
Both southbound lanes of State Highway 2 were closed because of the accident.
The Transport Agency said traffic was diverted down Block Road, with delays.
At 12.30 one southbound lane was reopened, but there were continuing delays in both directions and the detour was still in place.
An hour later, police advised that the road had been cleared and there were no further delays.