UPDATE: Kansas City police said Ault had returned to the treatment center and is safe.
PREVIOUS: Kansas City police are looking for a 23-year-old man who walked away from a mental health treatment center.
Christian Ault was last seen around 5 p.m. Sunday in the 2900 block of Holmes Street.
He needs daily medication and medical care, police said.
Ault was last seen wearing a red coat, multi-colored shorts and flip flops. He is 6 feet 1 inch tall and weighs 360 pounds.
If you see Ault, call 911. Anyone with information on his whereabouts is asked to contact the KCPD Missing Persons Section at 816-234-5136.
