BUFORD - Investigators believe two early morning fires Tuesday in adjacent Buford subdivisions were intentionally set.

Firefighters were initially dispatched to a residence in the 4800 block of Gold Trail Road at 5:19 a.m., reports said, where they found a double-wide modular home with heavy fire showing. At about 6:55 a.m., as crews were doing mop-up work, they noticed that a residence in the 4900 block of Pine Street, just one street over but in a separate subdivision, was also ablaze. Two engines and a battalion fire chief no longer working the first scene responded to the second fire.

Both residences were vacant and no one was injured.

The incidents remain under investigation, but investigators believe the timing and close proximity of the fires point to arson.

"During the investigation, there was evidence that supports the act of arson. Luckily, those homes were not being lived in, but there was substantial damage to two dwellings," said Gwinnett Fire Department spokesman Capt. Thomas Rutledge.

"We believe that the two fires were deliberately set and that the same individuals are responsible."

Authorities are asking anyone with information to contact the Gwinnett Fire Arson and Explosives Section at 678-518-4890 or the Georgia Arson Control Hotline at 1-800-282-5804. The Georgia Arson Control, Inc. offers a reward of up to $10,000 for information leading to the arrest and conviction of those responsible for arson.