Two cars have been damaged, with one needing a tow truck, after objects were thrown onto the Johnsonville Porirua Motorway from an overbridge.
A police spokesperson said they received reports just after 10pm on Friday of a person who had thrown a bottle from Mungavin Ave, which runs on a bridge above the southbound lanes on State Highway 1.
The bottle smashed the car's windscreen.
Then on Sunday, police were alerted to an unknown object being thrown at a car on the motorway at 12.50pm.
The spokesperson said it appeared the object was thrown from another vehicle.
