UPDATE TUESDAY AM (WZZM) - The Mason Co. Sheriff's office reports that a missing elderly couple and their adult son have been found safe.
The three were found at the Little River Casino in Manistee. Shirley had a medical issue and was taken to the hospital. First responders recognized the family as being missing and notified police.
DETROIT, Mich. (WZZM) -- Authorities are searching for an elderly couple and their adult son, who were supposed to visit a relative in Mason County on Sunday, but never arrived.
Deputies say that William and Shirley Brunson left Detroit just before 8 a.m. on Sunday and were bound for their daughter's home in Free Soil.
The couple is traveling with their 43-year-old son, William, who is mentally challenged.
The Brunsons were last seen driving a red four-door Taurus with the Michigan plate 0781E8.
If you have seen them or have additional information, contact the Mason County Sheriff's Office at 231-843-3475.