Heavy traffic backed up for kilometres from the Sydney Harbour Bridge after a head-on collision closed several lanes during peak hour traffic.

Heavy traffic backed up for kilometres from the Sydney Harbour Bridge after a head-on collision closed several lanes during peak hour traffic.

Heavy traffic backed up for kilometres from the Sydney Harbour Bridge after a head-on collision closed several lanes during peak hour traffic.

Two southbound lanes are closed on the busy highway.

The person was seriously injured in the crash and taken to hospital.

Traffic is again flowing from all four citybound lanes of the Princes Freeway at Laverton after four cars and a truck collided.

Traffic is again flowing from all four citybound lanes of the Princes Freeway at Laverton after four cars and a truck collided.

At least two people are seriously injured after a crash in Whakatāne on Wednesday morning.

At least two people are seriously injured after a crash in Whakatāne on Wednesday morning.

A truck fire has closed down multiple lanes of the M7 in western Sydney.