The Chattanooga Fire Department's investigative team has determined that several July fires in the Chattanooga area - including two on Friday - were intentionally set, according to a news release from the CFD.

The string of 10 arsons involved a mix of vacant and occupied residential structures. None of the fires are believed to be connected except for the business fires on Hixson Pike, in which one man was arrested.

Two of the fires occurred Friday, one at around 7:05 a.m. in a bedroom in the back of a home on the 7000 block of Old Lee Highway and another at about 2:01 p.m. at a vacant, boarded up structure on the 1500 block of E. 46th Street Place. Firefighters managed to quickly extinguish both fires. 

CFD investigators say there's evidence the Old Lee Highway fire was deliberately set and that there was no power to the E. 46th Street Place home, so investigators believe arson was to blame there as well, the release states.

Recent Chattanooga area fires linked to arson

July 4: Two fires at Hixson Pike businesses

July 21: Harris Lane fire

July 22: Old Birds Mill Road fire

July 23: Shannon Ave. fire

July 25: W. 37th St. duplex fire

July 29: 12th Avenue fire

July 30: Laws Avenue fire

July 31: Old Lee Highway trailer fire

July 31: E. 46th Street Place fire