Butler School District officials confirmed an incident occurred on a school bus Thursday morning.

Brian Slamecka, assistant superintendent, said the bus was on its way to the school, when an intermediate school male student between the grades of seven and nine “took a substance he shouldn’t have and got sick.”

Slamecka said the incident was not an overdose, however it is under investigation by the Butler Township Police Department.

Police were unable to be reached for comment.