DALLAS (CBSDFW.COM) – Smoke and haze could be seen coming from Dallas’ Mockingbird Lane for most of Sunday afternoon.

The smoke was coming from a four-alarm fire at the DFW Gun Range and Training Center, located in the 1600 block of West Mockingbird, between I-35E and UT Southwestern, near Love Field.

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(Brian New/CBSDFW)

(Brian New/CBSDFW)

There were roughly 75-100 people inside the gun range at the time of the fire.  A patron inside fired off a tracer bullet, a prohibited round, sparking the fire.

The fire spread quickly and almost immediately broke through the roof of the one-story gun range.

“You could see that flames coming through the roof,” said Will Sowell who was at the range taking a concealed handgun class.

Sowell said once outside he heard some of the ammunition inside the building explode.

“It sounded just like you expect,” he said.  “Fireworks were going off in succession.”

More than 100 firefighters were on the scene but due to the ammunition and the fire’s intensity they were not able to go inside to battle the fire.

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“The fire got so intense some of the walls on the north side of the building actually collapsed,” said Jason Evans with the Dallas Fire Department.

No one was injured,  but a firefighter was treated for smoke inhalation and given oxygen at the scene.

The fire was officially knocked out just after 5:oo p.m., about two-and-a half hours after it started.

The man who fired the round will not face any charges.  Investigators consider the cause accidental, and the matter to be a civil incident between the man and the gun range.

The fire also had no impact on flights at nearby Love Field.

Cell Phone video from CBS 11’s Sharrie Williams:

4-Alarm Fire

(Brian New/CBSDFW)

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