Authorities are investigating a hit-and-run incident involving mailboxes in Grant County. Officials with the Grant County Sheriff’s Department were dispatched at about 8:20 a.m. Monday to Sandy Hook Road in Jamestown Township for a report of a hit-and-run incident. A vehicle drove to the right side of the road just south of Badger Road and knocked over four mailboxes. The incident occurred sometime between 2 p.m. Sunday and 8:20 a.m. Monday. No vehicle parts were found at the scene. People with information about the incident are asked to call the sheriff’s department at 608-723-2157.