ISABELLA COUNTY, Mich. -- A missing Michigan boy has been found safe at an amusement park in Ohio.

FBI agents found 11-year-old Brendan M. Chobod at Cedar Point in Sandusky, Ohio, late Saturday.

Authorities were holding a 21-year-old man described as the boy's former baby sitter Sunday. He was being held on a charge of violating bond as he awaited sentencing on Michigan drug charges.

Prosecutors were considering additional charges.

Michigan authorities issued an Amber Alert for Chobod after he disappeared on Friday.

Authorities were concerned about the boy because he is mentally disabled and left his home without his asthma medications.

Police said he appears to be in good health.