LANSING, Mich. (Michigan News Source) – Frightened students and parents at four different Michigan high schools experienced a gamut of emotions on Tuesday as rumors of an active shooter in those schools turned out to be false.

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Police confirmed hoax shooting reports made at Okemos High School in Ingham County, Jackson High School in Jackson, Renaissance High School in Detroit, and Huron High School in Ann Arbor.

False shooting reports are called “swatting” because it’s a fake emergency that triggers a response from a SWAT team.

MSP Second District offered this warning against swatting on Twitter: “Parents, this is a good time to remind the kids. Usually, after a large incident like this we get copy cat calls for days following the incident. While some may consider it a joke, it is a good way to ruin your life if convicted of a false threat of terrorism.”

In addition to handling “swatting” calls on Tuesday, police told Mlive that contrary to social media rumors, no gunshots were fired in Nouvel Catholic Central High School in Saginaw.