At least three cars in Knoxville were damaged overnight Wednesday in a string of vandalism. Officer Darrell Brown tells KNIA/KRLS News that the cars were located separately in the 1500 block of West Larson, the 1500 block of Ridgecrest Court, and the 1100 block of East Marion. He says that it appears that they may be connected, as a concrete block was used to damage each vehicle. Officer Brown says that the incidents remain under investigation.