Authorities are looking for a Chester County woman missing since early Sunday morning on the Main Line.

Toni Lee Sharpless, 29, a single mother living with her mother in West Brandywine Township, was last seen around 3 a.m. at a house party in the Penn Valley section of Lower Merion Township, according to police.

After Sharpless drove away from the party with a friend around 3 a.m., they argued about whether Sharpless was in good enough condition to drive, said Lt. Frank Higgins of Lower Merion Police.

The friend got out of the car a block or two from the party, he said.

CBS3 reported that a text message to Sharpless' 12-year-old daughter might be the last communication anyone had with her.

She drove a black 2002 Pontiac Grand Prix GT, with a Pennsylvania license plate, DND-7772.

She was last seen wearing a turquoise shirt with black tights and black sandals. The red-haired, blue-eyed Sharpless is 5-foot-5 and weighs about 135 pounds.

Friends and family haven't heard from her, and she hasn't shown up at her job, said West Brandywine Police Chief Walt Werner.

Lower Merion police have contacted hospitals and checked phone records without turning up any additional leads, Higgins said. Investigators are still waiting to check financial records, to check for activity on checking or charge accounts.

"We're just hoping that she contacts us, and lets us know that she's OK," Werner said.

Anyone with information about the whereabouts of Sharpless or her car is asked to call Lower Merion detectives at 610-649-1000 or West Brandywine police at 610-380-8201.

Contact staff writer Peter Mucha at 215-854-4342 or