There is still no sign of 57-year-old Brenda Duncan, but police say they have found her vehicle abandoned in the Tavistock area.

The Mazda 5 van was found in the area of County Road 109 and Perth-Oxford Line on Sunday afternoon.

Provincial police say they've secured the vehicle and conducted a K-9 search of the area.

Woodstock police and the OPP are working together and the search is expected to resume Monday morning.

Duncan is described as white, 5'7", 115 lbs, blue eyes, long, straight shoulder-length brown hair with bangs, possibly wearing a red velvet blazer and black pants.

Police are asking anyone who may have been in the area or who has information on Duncan's location to call the Woodstock Police Service at 519-537-2323.