Shreveport firefighters battled two early-morning house fires they believe were intentionally set.

The first one was reported at 4:45 a.m. in the 1200 block of Fannin Street. Crews arrived to find the one-story, wood-frame home fully-involved with fire. It took six units 47 minutes to bring the flames under control.

The second fire was reported within 30 minutes and less than two city blocks away, in the 1200 block of Sprague Street. The fully-involved house was found with flames coming from the roof and all sides.

Firefighters worked diligently to protect a church adjacent to the burning house, keeping damage to a minimum. That fire was under control just after 6 a.m. No injuries were reported from either fire.

Both structures were determined to be abandoned vacant homes with no utilities connected. They're considered suspicious.

Fire investigators and Shreveport police officers have been interviewing witnesses and possible suspects who were seen leaving the area of the fire.