An active-duty airman at Goodfellow Air Force Base in Texas brought a weapon into work Monday morning, which triggered an active shooter alert and a roughly 45-minute lockdown.

No shots were fired, and nobody was injured, according to officials with the 17th Training Wing at the base.

Senior Airman Seraiah Hines of the 17th’s Public Affairs Office said the lockdown and gate closure was put into place at about 9:15 a.m., and was lifted at about 10 a.m.

An injured runner, frantic 911 calls and confusion: How exercises spiraled into a panicked active shooter scare at this Air Force base A series of miscommunications and confused reactions led two emergency exercises to snowball into a massive, chaotic active shooter scare in which security forces shot a door open, officials said Wednesday.

Goodfellow said in a Facebook post Monday afternoon that base emergency personnel responded. The name of the airman involved is not being released.

“The safety and security of Goodfellow’s service members, employees and families is the top priority and the procedures used today are in place to keep people safe,” Goodfellow said.

Goodfellow Lockdown Event. An active-duty airman brought a weapon to work which triggered an active shooter alert this... Posted by Goodfellow AFB - 17th Training Wing on Monday, April 1, 2019

The 17th trains intelligence airmen, both officers and enlisted, as well as firefighters. The Army, Navy and Marine Corps sends some intelligence personnel to Goodfellow for training.