You may have seen black smoke billowing across the sky-line Tuesday, but there was no danger.
In fact, firefighters were training to deal with dangerous situations. 15 firefighters from across the U.S. are training at the Lubbock International Airport for Basic Aircraft Rescue and Firefighting Academy.
In Tuesday's live fire training, instructors used fossil fuel to create dense, black smoke and intense heat, similar to the kind that would be produced by burning aviation fuel.
The academy runs through Thursday.