The Harlingen and Brownsville fire departments responded to a structure fire at Johnny's True Value in Harlingen.

According to Harlingen Assistant Fire Chief Darrell Loftus, the fire was reported at around 5 a.m. and approximately 30 firefighters responded.

Loftus said no injuries have been reported and no one was inside the building at the time of the fire. Barricades have been set up around the area, and parts of Harrison Avenue and Tyler Avenue have been shut down.

According to the AEP outage map, power to the area has been turned off. Fire officials are asking people to avoid the area.

The cause of the fire is still unknown and under investigation.

This is a developing story, check back for further updates.