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COLORADO SPRINGS, Colo. — No active shooter was found after law enforcement and security forces completed a search of dorms at the United States Air Force Academy late Friday night and early Saturday morning.

There were reports of a possible active shooter near prep school late Friday night. An active shooter response was conducted but nothing was found.

The all clear was given and gates were reopened around 1:30 a.m. Saturday.

Law-enforcement has completed a search of the dorms on Air Force Academy grounds. No injuries and no active shooter. pic.twitter.com/KlS7Od8bXU — EPCSheriff (@EPCSheriff) September 30, 2017

We received reports of active shooter on Academy grounds. There are no confirmation of shots fired. Security forces are sweeping the area. — U.S. Air Force Academy (@AF_Academy) September 30, 2017

Officials and cadets received alerts about an active shooter on campus via Twitter.

Gates at the Academy were closed and a heavy police presence on the campus was reported.

But nothing was found.