A man has been injured by a brick thrown through his car window in Meadow Springs on Monday.
Mandurah detectives are currently looking for witnesses of the attack, which happened about 4.20pm.
The 19-year-old was driving along Mandurah Road towards the Gordon Road footbridge overpass when a person standing on the overpass threw a brick at his vehicle.
The brick went through the windscreen and hit the man’s arm.
He was treated at Peel Health Campus for a possible broken wrist.
Police are asking anyone who may have been in the area at the time of the incident to report any information to police.
Anyone who may have information is asked to call Crime Stoppers on 1800 333 000 or make a report online at crimestopperswa.com.au.