Police are investigating after bleach was thrown onto a group of teens and workers at a Johnstown Sheetz.

The incident occurred on Tuesday afternoon and involved the use of both bleach and pepper spray, according to WJAC.

Greater Johnstown Superintendent Amy Arcurio told the news outlet that a school security guard witnessed an adult throwing the bleach onto students at the store and intervened.

The adult then threw the bleach onto the guard as he escorted the students out of the Sheetz.

Police Chief Mark Britton said the victims were treated on the scene and at the high school and parents were notified.

The identity or motive of the assailant is unknown at this point.

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