A serious crash on one of Perth’s major freeways brought train services to a halt and caused traffic chaos in the city’s south.

Southbound traffic on the Kwinana Freeway was very heavy for almost 8 kilometres and came to a standstill through Jandakot and Cockburn.

Train services on the Mandurah line, in both directions, were cancelled for several hours. 

However, just before 6pm Transperth announced Mandurah line services had resumed between Elizabeth Quay and Rockingham, although not to the usual timetable. 

An aerial shot of people working on a train track

Teams are working to fix the damage to the train track. (ABC News)

The crash damaged rail infrastructure in the freeway median, and also caused delays on the Yanchep line further north.

The Thornlie-Cockburn Line was also down for a short period but is now running.

Train replacement buses ran between Elizabeth Quay and Aubin Grove, although there were extensive queues to board some services. 

A long line of people queuing to get on a bus.

There were large queues to board buses at Elizabeth Quay Station.  (ABC News: Tim Carrier)

Just before 5pm on Thursday, Main Roads WA said the crash had been cleared but train services were still impacted. 

Peak hour delays

The crash, between a car and a truck, happened about 1pm just south of the North Lake and Armadale Road interchange.

Details about injuries are unclear — but police say they have not yet received reports of any life-threatening injuries.

Vision from the news helicopter shows significant resources at the scene, with the inner lane of the freeway blocked off.

The white car involved in the accident was extremely damaged.

The truck involved looked to be carrying a trailer loaded with a few boxes, and a large set of wheels became detached from the vehicle. 

While not clear at this stage how the crash happened, the damage to the rail lines brought more than 10 workers to the area.

The power lines above the tracks appeared to have been damaged. 

An aerial shot of a long traffic jam on the freeway

Traffic is banked up on the Kwinana Freeway as a result of the incident. (ABC News)

The cancelled train service on the Mandurah line impacted services for tonight’s AC/DC concert at Perth Stadium.

Surrounding roads were also heavily backed up.