Police continue to look for a Sanford woman who's been missing over three weeks and was last seen walking outside, disoriented, and without shoes.

40-year-old Kerry Rear hasn't been seen since January 22nd. The last sighting of her was caught on surveillance video in a convenience store, and was concerning because she seemed disoriented and was in her stocking feet. Rear left the store on foot, but police think she may have gotten into a vehicle, at some point.

A tracking dog was used earlier this month and her scent was followed all the way to Dover, New Hampshire. From there, she's just vanished. Police are hoping that someone remembers seeing her on the day that she disappeared because a woman walking down the street in her stocking feet would be memorable.

Anyone with information on the whereabouts of Kerry Rear is urged to call the Sanford Police Department at (207) 324-9170, Extension 227. A reward for information leading to her safe return has been increased to $10,000.