AUTHORITIES and family members are looking for a Montgomery County woman who went missing after having car troubles last week.

Deirdre Magolon, 20, of Royersford, was last seen leaving her home between 6:40 and 7 p.m. Friday, according to Upper Providence Township police.

Her 2005 black Mazda was found "abandoned and unoccupied" on eastbound Route 422 near the Interstate 76 interchange in King of Prussia about 7:20 p.m. that night, police said.

The car had apparently broken down while Magolon was driving, according to social-media posts from family members.

She did not have a cellphone with her, relatives told NBC10.

Magolon has not been seen or heard from since then.

She is described as 5 feet 5 and 125 pounds. She has blond hair and blue eyes. She was last seen wearing a gray furry hooded jacket.

Anyone with information should call 610-933-7899 or 484-391-2336, or email 015bec@uprov-montco.org. Tipsters should refer to incident report number 68-15-02046.