Amarillo police are asking the public for help finding Melvin Wayne McKown, 80, who was last seen in Santa Rosa, New Mexico. Police said he has several serious medical conditions.

McKown was last seen driving a white 2023 Chevrolet Malibu with Texas license plate WSY-6296. He may be with a dog of an unknown breed. He is described as 5 feet, 11 inches tall and about 210 pounds, with short gray hair, a gray mustache and green eyes. His clothing description is unknown.

Police said McKown has dementia, lung and heart disease, and diabetes. He is at risk of falling and does not have his medication with him. His cellphone last showed a location in Santa Rosa at about 7:30 a.m.

Anyone who sees McKown or the vehicle is asked to call 911. Anyone with information about his whereabouts should contact local law enforcement.