24/7 News Source (Chattanooga, TN) -- Chattanooga Mayor Andy Berke says five people were killed in today's shootings including the gunman. The shootings took place this morning at two military centers. Berke said the violence is "incomprehensible." U.S. Attorney Bill Killian said the shootings are being investigated as an act of domestic terrorism.

President Obama is getting briefings on the situation in Chattanooga, Tennessee. The White House says the President is receiving updates from his national security team. Federal officials have been scrambling to get more information about the situation after reported shootings at two military facilities, a recruiting office and a Reserve center. General terrorist threats against U.S. military installations have prompted heightened security at American stations around the world.

In brief remarks, Tennessee Republican Senator Bob Corker called himself heartbroken about the news from his hometown of Chattanooga. He offered thoughts and prayers for victims. Much is still not known about the Chattanooga shootings. The ensuing chaos prompted lockdowns at several locations, including a hospital and two college campuses. Agents with the FBI, ATF, Homeland Security and military intelligence are preparing to get involved in the investigation.

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