TRAFFIC enforcement officers are investigating a crash which happened in Yanchep on Friday, October 13 about 10.30am.
A WA Police spokeswoman said a red Mitsubishi Magna sedan was travelling south on Indian Ocean Dr.
About 2km north of Old Yanchep Rd, the Mitsubishi crossed onto the incorrect side of the road and collided with a black Holden Colorado before hitting a silver Nissan Pathfinder.
The 23-year-old male driver of the Mitsubishi and the 49-year-old male driver of the Holden were not injured.
But the 48-year-old female driver of the Nissan was injured and taken to hospital for treatment.
Investigating officers are asking anyone who saw the crash or the red Mitsubishi Magna prior to the crash to call Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au