Posted on 2017-09-30 by simituAir Force Academy Police declare false alarm hours after active shooter alert at U.S. Air Force Academy sparked lockdown Cops gave the all-clear more than four hours after reports of an active shooter at the U.S. Air Force Academy sparked a lockdown in Colorado. “Law enforcement has completed a search of the dorms on Air Force Academy grounds. No injuries and no active shooter,” the El Paso county Sheriff’s Office confirmed around 2:25 a.m. Entry gates to the base were shut down after the USAFA sent out an alert via text message. “AN ACTIVE SHOOTER HAS BEEN DECLARED BY LAW ENFORCEMENT. LOCKDOWN. LOCKDOWN. LOCKDOWN,” it read. The sheriff’s office said they were investigating, and a SWAT team appeared at the scene while military personnel conducted sweeps in the dormitories. The Air Force Academy made headlines earlier this week after racist notes were left on the message boards of five black cadets. Superintendent Lt. Gen. Jay Silveria strongly condemned the racism as he addressed the academy Friday. “If you can’t treat someone with dignity and respect, get out,” he said.