UPDATE 5:22 p.m.: Travis Air Force Base is no longer on lockdown Wednesday afternoon. Emergency personnel initially responded to reports of gunshots. But there was no shooter found. Base officials are calling the incident "a false alarm."

UPDATE: Emergency personnel responded to reports of gun shots @the Base Exchange. It was determined to be a false alarm. Lockdown is lifted. — Travis AFB Official (@Travis60AMW) June 15, 2017

The initial reports originated from the Base Exchange, which is the base's shopping center.

Everyone on base was ordered to shelter in place and to lock their doors and windows. Traffic in and out of the base was halted.

After an hour of searching, no shooter was found.

The base is no longer under lockdown.

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UPDATE 4:47 p.m.: Travis Air Force Base is currently responding to an active shooter situation.

The base posted on Twitter and Facebook at about 3:40 p.m. Wednesday afternoon to say everyone on base has been ordered to shelter in place and has been ordered to lock doors and windows.

A spokesperson for the base confirmed the threat is an active shooter. A person on base reports there was an incident at the BX shopping center, but could provide no other details.

Officials are urging the public to stay away from the base to ensure easy access for emergency responders.

No traffic is allowed into the base.

Original Post: Travis Air Force Base is currently responding to what officials there are calling "a real world security incident."

The base tweeted that a security alert is in place and said to shelter in place, locking doors and windows.

The base says on it's Facebook page that more details will be released as they become available.

In the meantime, officials are urging the public to stay away from the base to ensure easy access for emergency responders.

Travis has been involved in a base-wide exercise, but the situation at hand is a real-world alert. — Travis AFB Official (@Travis60AMW) June 14, 2017 Not at this time. The public is being asked to stay away from the base area so emergency responders can respond accordingly. — Travis AFB Official (@Travis60AMW) June 14, 2017 Security alert @Travis60AMW. Shelter in place. Lock doors/windows. Await further info. Follow Travis Facebook page for updates. — Travis AFB Official (@Travis60AMW) June 14, 2017

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