Lucie Caron has a 10-year-old autistic daughter at home. ((Gatineau Police))

A Gatineau woman has been missing for three weeks, and her family is very worried, police say.

Lucie Caron, 40, was last seen leaving her home on Bélanger Street in Gatineau's Buckingham area around 3 p.m. on Oct. 27, and her debit card hasn't been used since Oct. 22, said a Gatineau Police news release.

Caron has a 10-year-old autistic daughter at home, the release said.

The missing woman is described as five-foot-five inches tall and 181 pounds, with blue-grey eyes and brown hair. She was wearing a long-sleeve blue shirt, a gold chain, a black leather jacket with fur trim, blue jeans and grey sneakers.

Anyone with information is asked to call Gatineau police.