It's been a busy morning for emergency services responding to separate crashes in West Pinjarra and Baldivis.
The first crash happened on the Forrest Highway near Greenlands Road just before 6.30am on Wednesday.
It's understood to have involved two cars and a truck.
A St John Ambulance spokesperson said they transported a man in his 70s to Peel Health Campus with non-life-threatening injuries.
Another man, also in his 70s, was treated at the scene but did not require hospital treatment.
It is understood the driver of the second car and the truck driver were uninjured.
The Forrest Highway was closed southbound for just over an hour but has since reopened.
It was the fourth crash in a matter of weeks near the same intersection, one of those being fatal.
The second crash happened at the intersection of Safety Bay Road and Mandurah Road in Baldivis around 7.45am on Wednesday.
A car rolled resulting in a teenage male being taken to Rockingham Hospital with non-life-threatening injuries.
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