BEDFORD, Texas - Authorities have issued a Silver Alert in both Texas and Oklahoma for an elderly couple who went missing Monday.

Robert and Sarah Maggard, both from Bedford, Texas, were last seen driving in Saginaw, which is just north of Fort Worth.

Robert Maggard, 73, has Alzheimer's disease. He's described as white, 5 feet 10 inches tall, 150 pounds with gray hair and brown eyes. His wife 71-year-old wife Sarah is white, 5 feet 4 inches tall, 130 pounds with gray hair and blue eyes.

The Maggards were last seen driving a tan, 2004 Honda CR-V with the Texas license of BT4-J495.

Police and the Maggards' family fear for their safety because of the couple's health issues. If you know their whereabouts, please call the Bedford Police Department at (817) 952-2630.