ATLANTA -- A middle school student is home from the hospital after they were treated Wednesday for ingesting a controlled substance, officials said.

According to a spokesperson with Atlanta Public Schools, the eighth grade student attends Young Middle School on Benjamin E. Mays Drive in southwest Atlanta.

A spokesperson for the Atlanta Fire Department initially told 11Alive Wednesday that four children were transported to Grady Hospital around 2:50 p.m., but Kimberly Willis Green with APS later clarified that only one student was severely affected.

According to the Atlanta Public Schools Police Department, officials now believe the substance may have been Xanax but that is still under investigation. Officials said the student's unusual behavior is what tipped them off, and when they questioned the student, he or she admitted taking the substance.

Three other students were also checked out by EMS Wednesday, but denied ingesting the substance. They were checked out and cleared of having anything in their system, including a second student who was later confirmed transported to the hospital. That student was released to parents.

APS officials said that the student who ingested the substance will face disciplinary action. The police department is also investigating to determine if charges will be filed.

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