A man who has a history of mental illness has been missing for more than a week, according to police.

Ronald Celestine, 58, was last seen on May 7 in the 9500 block of Jensen Drive in north Houston, investigators say.

Celestine has a mental illness that requires medication.

Officials describe him as a black man who is six feet tall, has brown eyes and gray hair. He was last seen wearing a beige, long-sleeved jacket with green pants and white shoes.

Anyone with information should call the Houston Police Department’s Missing Person Division at (713) 731-5335.