NEW ALBANY, Ind. – Indiana University Southeast was on lockdown this week after a man with an umbrella was mistaken for a rifle-toting terrorist.

“All Clear,” announced IU Southeast’s twitter account shortly after 2 p.m. Thursday. “The suspect has been located and the reported weapon has been identified as an umbrella. At this time it is safe to leave.”

IUS spokewoman Kendra Barnes told The Courier-Journal police issued a lockdown about an hour earlier, when a report came in about a gunman on campus.

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“IU Southeast Emergency! An armed person is on campus. Go into nearest room and lock door,” IU Southeast tweeted at 1:10 p.m. “Follow instructions from authorities.”

A tweet about 20 minutes later instructed students to “remain in safe shelter and keep doors locked.”

According to the IUS Twitter feed, police were “searching for white male, approx. 5’ 10”, wearing light colored shorts and a camouflage back pack.”

The lockdown was the second at New Albany campus since December, when a student with a BB gun acting prop prompted a report of an armed intruder on campus, and the university enacted it active shooter protocol, the IUS Horizon student news reports.

“The subject, an unnamed student, had reportedly been on campus for his Acting 1 final. Another student in class, Michael Gardner, business sophomore, said students were required to enact a scene from ‘The Dumb Waiter’ by Harold Painter,” the Horizon reports.

“At the end of the scene, one of characters gets shot,” Gardner told the news site.

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“Everyone in the theater department knew it was a prop,” he said, “but obviously, when he left the class, somebody saw it in his pocket and didn’t know what it was.”