ST. LOUIS (AP) – Authorities say a 5-year-old heart patient who was taken from a St. Louis hospital by his father has been found safe just outside Chicago.

An Alsip, Ill., police dispatcher who declined to give her name because she wasn’t authorized to talk to the media said Wednesday that Porter Stone was found at hospital there and the father, 33-year-old Jeffery Stone, was in custody.

A missing child alert was issued after the boy was taken from the hospital Tuesday.

St. Louis police Capt. Jim Moran said the boy’s father didn’t have legal custody.

Porter was being treated for cardiomyopathy, a thickening of the heart muscle. A doctor said his condition is serious and he only had about a day’s worth of medication when he was taken.