Army spokesman Col. Rich Spiegel told Fox News he could not "confirm there is an actual active shooter," but that the base had been on lockdown for more than an hour.
"We are taking this seriously. There has been a very active law enforcement response," Speigel said. "There is an internal shelter in place order in effect."
Military police and FBI agents are at the scene.
An email was sent out to employees at the Redstone Arsenal at 10:31 a.m. informing them the alert was "a real world event, which is not part of the exercise," according to AL.com.
"The facility is under lockdown and all gates are closed," the email continued.
http://www.foxnews.com/us/2017/06/27/possible-active-shooter-at-us-army-installation-in-alabama.html