(Mt. Vernon, IL) — An investigation is underway following a series of burglaries in Jefferson County. Police say the crimes have happened in several parts of Mount Vernon over the past few weeks. Residents are asked to be on the lookout for any suspicious activity. The Mt Vernon Police Department number is 242-2131 and the Jefferson County Sheriff’s Department number is 244-8004. You may also call Crimestoppers at 242-8477. You do not have to identify yourself and may be eligible for a cash reward.