South Kingstown police are currently investigating a motor vehicle accident that happened on Curtis Corner Road at 11:17 p.m on Friday.South Kingstown police say this was a single motor vehicle crash involving a 2003 Volkswagon Jetta. The car was being operated by 18-year-old Evan Conover, of Wakefield. 18-year-old Aidan Mulligan, and a juvenile were passengers. According to police, the vehicle left the lane of travel and drove through a fence, coming to rest in a horse pasture. Mulligan was transported by helicopter to Rhode Island Hospital to be treated for serious injuries. Conover and the juvenile passenger were transported to South County Hospital for treatment.