A body found recently in Haralson County has been identified as that of missing Cartersville woman Heather McDonald, the Georgia Bureau of Investigation said Thursday.

McDonald, 27, had been missing since mid-September.

An autopsy will be performed by the GBI Medical Examiner’s Office, officials said.

McDonald, a mother of three, was last seen in the area of Highway 411 and I-75 on Sept. 18, officials said. A tip led the GBI to believe McDonald was last seen in the Courtesy Inn parking lot, The Atlanta Journal-Constitution previously reported. Her red Jeep Wrangler was found there with the doors wide open, her keys on the ground and her ID and cellphone missing.

A man who is described as a person of interest in the case is in custody on an unrelated charge.

Anyone with information about the case is asked to contact Cartersville police at 770-382-2526 or the GBI’s Calhoun office at 706-624-1424.

The FBI is offering a reward of up to $20,000 for information about her death.