The Anna Fire Department responded to a commercial fire alarm at 1:40 a.m. on Monday originating from Bronco Manufacturing at 500 W. White.

This was no false alarm as first responders noticed smoke coming from the building upon arrival; light smoke at first followed by darker, thicker smoke shortly thereafter.

"It changed from light smoke to heavy, dirty pressurized smoke," said AFD Chief Tim Gothard.

The smoke was seeping out of exhaust fans on the sides of the building and around pull-up doors at the rear of the building. Anna firefighters responded immediately with two engines but upon sizing up the situation called in support units from Melissa, Westminster and Van Alstyne. A ladder truck from McKinney was eventually brought onto the scene as was an AMR ambulance to provide firefighter support.

Firefighters gained entry to the building and located an active fire in a mezzanine area above a ground floor bathroom/office area. The approximately 20x20 open area housed old company records and was situated near the heating and air-conditioning units. Those records — boxes and pallets full of paper — made the situation combustible, but firefighters got it under control and the fire was eventually fully extinguished.

For Bronco Manufacturing, there is much to do in terms of clean-up and repair. The roof and insulation inside the building was scorched by the flames and the water used to douse the blaze created a soggy mess of all the old paper records.

"They will probably be down for awhile," Gothard said. "There is a lot of clean-up to do on their end."

The good news as far as Gothard is concerned is that no one was injured battling the fire. However, the extreme weather (sub-15 degrees) was so tough on those firefighters that a Nevada Fire Department bus equipped with seats was called in to provide breaks from the cold weather for the 32 personnel on scene.

Following an investigation, the scene was cleared at approximately 10:30 a.m. later that morning. Gothard said the cause of the fire remains undetermined, though he ruled out arson as a possible cause.