Someone used large rocks to damage 10 parked vehicles and seven mailboxes in Manchester Borough and East Manchester Township, police said.
The vandalism happened overnight Saturday and into Sunday morning, on North Main, Harding, York and Park streets as well as Canal Road Extended, according to Northeastern Regional Police.
Seven vehicles had windows or windshields smashed, three vehicles sustained body damage from hurled rocks, and seven mailboxes were damaged, police said.
The rocks ranged in size from fist-sized to nearly soccer ball-sized, according to police.
Anyone with information is asked to call police at 266-6195, or call 911.