DETROIT (WWJ) – Detroit’s Cass Tech High School will remain open Thursday after an investigation determined that an online threat made toward the school was not credible.

School officials say the threat was made Wednesday through the social media app Kik. A Detroit Public Schools police officer, who is also assigned to a FBI Task Force, eventually traced the threat to a student at the school.

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Investigators say the threat was determined to be non-credible. Although officials say they’re confident no students are in danger, security will be stepped up at Cass Tech for the rest of the week as a precaution.

“Detroit Public Schools takes all threats made against its schools extremely seriously,” the district said in a statement. “All suspects involved will be prosecuted at the highest level for this unlawful action.”

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It’s unclear what charges the student may be facing.

An investigation is ongoing.

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