UPDATE: Claire Lavoie's body was found in Roxton Pond, about 12 kilometres north of Granby, Monday afternoon.
A 64-year-old woman from Montreal has not been seen in more than two weeks and may be in Granby.
Police are asking the public to look for Claire Lavoie because she has several serious health problems and does not have her medication with her.
Lavoie suffers from respiratory problems, among other medical issues.
She is 5'1" and 100 lb (1.55 m, 45 kg) with short blonde hair and brown eyes.
She may be driving her car, a blue 2007 Pontiac G5 with the license plate YCB 316.
Lavoie was last seen in Granby on July 25, 2014.