San Antonio (USA), Aug 17 (AP) US Air Force security guards exchanged gunfire with a person or people who opened fire at an entrance to Joint Base San Antonio-Lackland early Saturday, according to a spokesperson for the base.

No injuries were reported after the guards returned fire after gunfire erupted from a passing vehicle at a base entrance around 4:30 am, public affairs chief Stefanie Antosh told the San Antonio Express-News.

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It was not known how many rounds were fired, how many shooters there were, or what their motive was, Antosh said.

“We don't know what, if anything, started it,” Antosh said. “But it wasn't an active threat to the installation, and there is no active threat to the installation.”

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Antosh did not immediately return messages from The Associated Press for more information.

The entrance was closed for several hours after the shooting, but the base was not locked down, according to Antosh.

San Antonio police also responded to the shooting and helped collect evidence.

A police spokesperson did not immediately respond to phone calls and an email for information.

In addition to Lackland, Joint Base San Antonio includes Randolph Air Force Base, Fort Sam Houston and the Camp Bulllis training camp.

Lackland is home to more than 24,000 active duty members and 10,000 Department of Defense civilians, according to the base website. It includes the 37th Training Wing; 149th Fighter Wing; 59th Medical Wing; the Air Force Intelligence, Surveillance and Reconnaissance Agency; 24th Air Force Wing, 67th Network Warfare Wing; the Cryptologic Systems Group; the National Security Agency; and 70 associated units. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)