SPRING CHURCH, Pa. (KDKA) — Officials said a message referring to a bomb threat was found in the bathroom at Apollo-Ridge Elementary School.

The Apollo-Ridge School District superintendent said law enforcement was informed Wednesday morning and the threat was deemed to be of low credibility.

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Students were moved to the secondary buildings as law enforcement searched the elementary school, the district said.

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Students returned the elementary building before dismissal.

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The school district said it is cooperating with law enforcement for the investigation.