UPDATE: Oklahoma City police canceled its Silver Alert for 73-year-old Gregory Gilbert after he was located Saturday night.
Gilbert was last seen Saturday morning around 8 a.m. at 4717 Lunow Drive.
Police said he was wearing a dark colored shirt, jeans, and glasses and drives a White 2002 GMC NC1 with a white camper. License Plate #CEA703
OCPD said Gilbert has a pacemaker and has to take medication.