Ozwald Hammer has been missing since 1 p.m. CST Saturday after he failed to return from checking on some cattle. ((RCMP))

RCMP in Maple Creek, Sask., are asking the public to be on the lookout for an elderly man with Alzheimer's disease who may have gotten lost while driving home.

Police said Ozwald Hammer, 83, left his farmyard just west of Maple Creek at about 1 p.m. CST Saturday to check on some cattle about 1.6 kilometres away.

Investigators believe Hammer — who was driving a red 2004 Ford Explorer — took a wrong turn on his way back. He hasn't been seen since.

A search and rescue crew is in the area working to locate him, police said on Sunday.

Hammer takes medication for Alzheimer's, police said.

The SUV he was driving has an Alberta licence plate with the marker 22G 923. Anyone who sees him or the vehicle is asked to call RCMP at 1-306-662-5550.

Maple Creek is about 30 kilometres east of the Alberta-Saskatchewan border, about 10 kilometres south of the Trans-Canada Highway.