A Highland Lake woman was killed early Friday morning after her car ran off the road and she struck a tree in the Town of Highland.

Clarissa Pflanz, 22, of Eldred was pronounced dead at the scene, Sullivan County Sheriff's Department Chief Art Hawker said.

She was driving along Mohican Lake Road around 5 a.m. when she lost control. Pflanz was alone in the car.

"It appears that speed and alcohol were factors but we have to confirm," Hawker said. "The autopsy is scheduled (Saturday.)"

Highland Lake firefighters extricated Pflanz and the American Legion Ambulance also responded.