Car plunges into suburban sinkhole in Perth's south

A burst water main in Perth's south has caused a car to plunge into a sinkhole overnight, cutting off the water supply to nearby homes.

The sedan has fallen into a large hole in the middle of The Bridgeway, one of the key suburban roads running through Canning Vale.

In a statement, the Water Corporation confirmed the car became stuck around 4am after driving through floodwater following a burst water main.

"Crews were onsite within 30 minutes and promptly isolated the main, with work now underway to remove the vehicle and make repairs," the Water Corporation said.

"Water supply is affected to around 10 nearby homes, and residents may notice discoloured water as repairs progress."

The Water Corporation's Paul Prottey said while burst pipes were not uncommon, it was rare for one to cause a sinkhole.

"With a network the size that we have across Perth, we get our leaks and bursts, like every other water scheme across the world," he told 102.5 ABC Perth.

"But to have a car fall into a hole in the middle of a road is an extremely rare occurrence."

Mr Prottey said it would be difficult to remove the car given how close the water pipe was to the gas main.

"We've got a tow truck on site, we just don't want to remove that car until we get the [water main] isolated … we'll just do it as carefully and safely as we can," he said.

Mr Prottey said it was too early to say whether the incident would cause broader issues with the water network.

"We'll check the failure of the pipe once we get [the car] out and see what the cause is, so we can ascertain if that's going to happen anywhere else and see what we can do to prevent it in the future," he said.

No injuries were reported to St John WA and no ambulance was sent to the incident.

Traffic management is in place and drivers have been asked to avoid the area while repairs are undertaken.