Illinois State Police Troop 9 continues to investigate an ATV (side by side) personal injury accident that occurred just a little after 10 O’Clock Friday night on 1150 North approximately ¼ mile east of 2175 North in Clay County and near Clay City. Preliminary information indicates a male juvenile fell from a Utility Vehicle (side by side) and was flown to a regional hospital with serious injuries. No further information is available. The male juvenile attends North Clay Grade School in Louisville.