Arson investigation underway after fire at empty building in east Austin

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AFD battles fires in vacant buildings

It was a busy day for Austin firefighters, who battled fire at vacant buildings in southeast and central Austin on Thursday.

A trash fire at an empty building in east Austin was put out by AFD crews on Thursday.

Fire crews responded to a fire at 3011 N. I-35 at a vacant building.

AFD closed two lanes of the interstate frontage road while they worked on putting out the fire.

RELATED: Fire at vacant apartment building in Southeast Austin

AFD says the cause of the fire was incendiary, and that they are investigating the incident as an arson.