A silver alert has been issued for a 70-year-old man last seen leaving Konawa, the Oklahoma Highway Patrol reported.

DEL CITY, Okla. ( KFOR) – The Oklahoma Highway Patrol has issued a Kasey Alert for 19-year-old Isabell Marmolejo. According to OHP, Marmolejo is 6’1″, 250 pounds with brown hair and brown eyes. She was last seen on foot in Del City. Officials say Marmolejo have developmental delays and may become violent without medication.

Oklahoma City Police issued a Silver Alert on Sunday afternoon for a missing 63-year-old man. According to police, Jay Roberts is 6 feet tall and weighs around 145 pounds. Officials said he has brown eyes and gray shoulder-length hair.

A Silver Alert has been activated by authorities for a 64-year-old man who recently walked away from his residence.