Montreal police are searching for a missing 75-year-old man who walked out of hospital

(SPVM)

Montreal police are searching for a missing 75-year-old man.

Antonio Kaloidas was last seen leaving a hospital in Rosemont-Petite-Patrie around 11 a.m. Thursday.

Medical staff say he has a serious condition and must return to hospital as soon as possible.

According to police, Kaloidas mainly speaks Greek and can have a hard time communicating, though he understands what people tell him.

He is about 5′ and weighs 160 pounds with grey hair. He was last seen wearing a black baseball cap, a black coat and black pants.

Anyone with information can call 911 or their local police station.