IDAHO FALLS – After the closure of three schools on Thursday due to multiple threats of gun violence, school district officials say they have determined the rumor began due to students from a rival high school conducting a prank.

According to a news release from Idaho Falls School District 91, a rumor began circulating Wednesday night that a person with a gun was seen in a car near Skyline High School. The concern was reported to the school resource officer and school administrators.

RELATED | Classes canceled at three Idaho Falls schools following gun threats

Idaho Falls Police officers responded and Skyline High School, Eagle Rock Middle School and Ethel Boyes Elementary, whose campuses are next to Skyline, were closed Thursday.

Officers were reportedly traced the rumor back to a rep

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