"Lock down, Lock down, Lock down," a intercom messaged boomed throughout the base during the incident. "Real world, real world."
— stevelarge (@largesteven) June 14, 2017
The shooter was reportedly seen near the base's shopping plaza.
"The public is being asked to stay away from the base to ensure emergency responders can respond accordingly," the Travis Air Force Base said in a statement Wednesday afternoon.
No injuries have been reported, according to a local NBC affiliate.
— jacob martin (@Neato__Burrito) June 14, 2017
People on the base were ordered to lock all their doors and windows, according to base's Twitter account. For several hours, no one could enter or exit the base via car, local media reported, as people were escorted out of base buildings.
— Zach Prusak (@ZachPrusak) June 14, 2017
A drill had been scheduled to take place around the same time, but the "current security incident is not associated with the scheduled base exercise," according to the base's official Facebook page.
— stevelarge (@largesteven) June 14, 2017
A flurry of possible shootings unfolded around the US on Wednesday. A Congressman was badly injured in Alexandria, Virginia, in a shooting that left four others wounded. Four individuals were slain at a UPS facility in San Franciscio, about an hour's drive from Travis Air Force Base. Another gunman open fired in Brooklyn, New York, on Wednesday as well.
Officials have just reported the situation to be "all clear."
— stevelarge (@largesteven) June 15, 2017