A driver who crashed into a tree Saturday night in north Clark County ran away from the scene leaving behind a seriously injured passenger trapped in the wreckage, according to the Clark County Sheriff’s Office.The crash was reported about 8:30 p.m. on the 15000 block of Northeast Cedar Creek Road, just east of Pup Creek Road, said CCSO Sgt. Tony Barnes. Drivers who came across the scene reported seeing someone running east away from the crash scene, but they couldn’t tell if the person was a man or woman.The passenger, who appears to have suffered internal injuries and broken legs, is a man in his 20s. His identity was not released Saturday. It took crews from Fire District 10 and North Country EMS an hour using heavy extrication equipment to free him from the wreckage of the older-model Cadillac.The man had been wearing a seat belt. He was transported by LifeFlight to an area hospital.