UPDATE: The Chattanooga Fire Department says two fires from over the weekend are believed to be arson. Now, they’re asking for the public’s help.

Firefighters first responded to a call of a shed fire on Dodds Avenue early Sunday morning. Shortly after, police told them there was a second fire two blocks away. This one was at a vacant house.

Captain Anthony Moore says no one was inside, but the fires happened blocks away from each other, which gave investigators a clue.

"Both of these structures were abandoned which tells us there was no power so that really piqued our curiosity,” Moore said.

That, coupled with the close location and short time between the fires, led investigators to arson. Now, they're looking for a culprit.

"We depend on witnesses, some of the citizens of Chattanooga, if they saw anything, heard anything,” Moore said.

They don't have any concrete leads yet, but Moore said that isn't stopping his confidence.

"We always feel confident that we're going to find out at some point,” he said. “That generally is how it works."

The department asks that anyone with information call them at 423-643-5600. 

PREVIOUS STORY: Chattanooga Fire Department investigators have now determined that two fires Sunday morning, that occurred right down the street from one another, were intentionally set.

In the first fire, firefighters were called to a shed fire in the 4000 block of Dodds Avenue around 4:20 AM Sunday.

There, they found burning shed and as they started working to extinguish the blaze, Chattanooga police officers alerted the crews that there was also a house fire nearby in the 4200 block of Dodds Avenue, just two blocks away.

At the second location, firefighters found flames coming out of the back of a vacant house on Dodds. Crews worked quickly to extinguish the blazes at both locations.

Investigators believe the arson cases are connected.

Luckily, no injuries were reported.

Anyone with information on the suspicious fires is asked to call the Chattanooga Police Department at 423-698-2525 or Chattanooga Fire Department at 423-643-5600.

PREVIOUS STORY: The Chattanooga Fire Department worked to put out two fires overnight on Sunday.

Dispatch tells us one fire involved a shed on 12th Avenue and the other involved the back of a vacant home on Dodds Avenue. 

Both fires are a few hundred feet away from each other, according to fire officials. 

Investigators are looking into what caused the fires. Officials say early indications are that the cases might be related. 

No one was hurt in either fire. 

This is a developing story, we will bring updates as we get them.