Three teens were injured, one of them seriously in an accident involving two ATVs Sunday afternoon in Douglas County. The Highway Patrol reports that 19 year old Taylor Ridenour of Kimberling City suffered serious injuries and 15 year old Colby Nichol and 16 year old Johhny Welker both of Ava both suffered minor injuries when Ridehour attempted to pass the ATV that Nicol was driving and lost control and hit the ATV that Nicol was driving. All three subjects were thrown from the ATVs.