Two 16-year-old boys have been arrested after allegedly throwing rocks at cars on the Kwinana Freeway.
Around 11.30pm on Friday, police received reports that vehicles travelling north near Berrigan Drive in Cockburn Central were being hit by rocks being thrown from the western side of the carriageway.
A number of vehicles were damaged.
On one occasion, a rock smashed through the windscreen of a Toyota Camry, hitting a 55-year-old man, who was a front seat passenger, in the chest causing injuries.
He was taken by ambulance to Fiona Stanley Hospital with non-life threatening injuries.
Further investigation by police led them to believe that the rocks were being thrown over a fence set up near roadworks.
Police Dog Mako was deployed and located two boys hiding in a shed at a nearby residence in Cockburn.
Two 16-year-old boys are currently in custody assisting with inquiries.
Scorching Christmas temperatures for Perth, Rockingham, Mandurah
Teen charged over Baldivis arson attack
Concerns for missing boy last seen in Warnbro
Baldivis Sports Complex officially complete with unveiling of final stage
Teen dies at Logue Brook Dam
Mandurah named WA’s Most Accessible Community
Police attend separate crashes in Lakelands and Port Kennedy
Fresh new look for Roger May Machinery Museum
Tragic end to search of missing FIFO worker