CINCINNATI (AP) — An Ohio prosecutor has blocked police from releasing results of their internal probe into the failed response to a 16-year-old boy trapped in a minivan near his school.

Cincinnati Vice Mayor Christopher Smitherman says Hamilton County Prosecutor Joe Deters has directed that no photos or video be released from the investigation of Kyle Plush’s death. He says Chief Eliot Isaac can’t proceed with a planned Wednesday morning presentation to City Council members until the prosecutor’s office completes its investigation.

Kyle Plush’s father found his body nearly six hours after the teen made two 911 calls seeking help. A coroner ruled he asphyxiated from chest compression.

Cincinnati officials on Monday outlined plans for the emergency center that include adding staff, training and technology, and studying other centers.