**UPDATE: Patrick Byron McCann has been found safe**
A Green Alert has been issued for a 46-year-old North Chicago man.
Patrick Byron McCann was last seen Monday about 7:45 a.m. at the Captain James A. Lovell Federal Health Care Center in North Chicago.
McCann is 6 ft. tall, 240 pounds with balding short blonde hair. He is believed to be in the area of either Kenosha or Pleasant Prairie, Wis.
He was last seen wearing a gray sweatshirt and sweatpants, and is possibly riding a black motorized bicycle.
If you see McCann, do not try to approach or contact him. Instead, call 911 or your local police department.