SYDNEY - Two Chinese nationals were killed and another was seriously injured following a collision between a car and a tourist bus in the state of Western Australia on Sunday.

The two deceased and the injured women have been confirmed as residents of China's Macao.

Officials from the Chinese Consulate General in Perth told Xinhua that the injured woman is in a stable condition and will remain in hospital for observation.

According to the police, the crash occurred shortly before 2:00 pm local time on Sunday as the car in which the three women were travelling attempted to make a turn onto a remote stretch of a highway roughly 190 km north of the state capital of Perth.

The bus, which was carrying 34 passengers, collided with the women's car, causing it to roll before coming to rest on its roof.

"The driver of the car died at the scene. The two passengers were conveyed to Royal Perth Hospital by the RAC Rescue Helicopter. One passenger has since died," police said in a statement.

Some of the occupants of the bus were treated at the scene for shock and minor injuries.

The crash took place not far from the tourist site, the Pinnacles rock formations, on the notorious Indian Ocean Drive, which has also seen several serious crashes since it opened in 2010.

Last year two Chinese tourists were killed when the bus they were travelling in was involved in a head-on collision with another vehicle. In 2017, three people, including a six-year-old boy were killed in a similar incident.

Representatives from the Chinese Consulate General in Perth have consulted with local police in order to notify the families of those involved and provide support to the injured victim.