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TINLEY PARK, IL - OCTOBER 18:  Pistols are offered for sale at Freddie Bear Sports on October 18, 2012 in Tinley Park, Illinois.  Facing a $267.5 million fiscal 2013 budget gap, Cook County, which includes the City of Chicago and suburbs, has proposed a tax of 5 cents per bullet and $25 on each firearm sold at gun and sporting goods stores in the county. Fred Lutger, who has owned Freddie Bear Sports for 35 years, is concerned with the impact the tax will have on his store which is located about 2 miles inside the Cook County line.  (Photo by Scott Olson/Getty Images)
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TINLEY PARK, IL - OCTOBER 18: Pistols are offered for sale at Freddie Bear Sports on October 18, 2012 in Tinley Park, Illinois. Facing a $267.5 million fiscal 2013 budget gap, Cook County, which includes the City of Chicago and suburbs, has proposed a tax of 5 cents per bullet and $25 on each firearm sold at gun and sporting goods stores in the county. Fred Lutger, who has owned Freddie Bear Sports for 35 years, is concerned with the impact the tax will have on his store which is located about 2 miles inside the Cook County line. (Photo by Scott Olson/Getty Images)
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Story highlights

NEW: Two die in murder-suicide, Bexar County Sheriff's Office spokesman says

Source: Airman shot his squadron commander

No arrests reported; shooting was not a terrorism situation, brigadier general says

(CNN) —  

Two people are dead after a shooting Friday morning at Joint Base San Antonio-Lackland – an incident that involved an airman shooting his squadron commander, a Pentagon official told CNN on condition of anonymity.

James Keith, spokesman for the Bexar County Sheriff’s Office, said it was a murder-suicide.

No arrests have been reported, but the situation is over and a lockdown at the Texas facility – also known as Lackland Air Force Base – has been lifted, Brig. Gen. Robert LaBrutta told reporters.

LaBrutta gave few details about the shooting, which was reported at 8:40 a.m. (9:40 a.m. ET) in Forbes Hall, a building with offices and classrooms. He declined to identify the dead and gave no details about any relationship between the two, what led to the gunfire, or what ended it.

But a Pentagon official told CNN that an airman had shot his commander. The official did not comment on the status of either person.

Two “male victims” and two Glock guns were found in an office at Forbes Hall, LaBrutta said.

The shooting was “not a terrorism situation,” he said.

After the shooting was reported to 911, security personnel evacuated Forbes Hall and initiated a lockdown of the base. They then searched the building for about an hour before lifting the lockdown and declaring the situation over.

Lackland is where the U.S. Air Force conducts its basic training for enlistees. Lackland is one of three major military facilities – the others being Randolph Air Force Base and the U.S. Army’s Fort Sam Houston – that merged to form Joint Base San Antonio in 2010.