ATLANTA -- Law enforcement across three metro Atlanta counties is joining with the Federal Bureau of Investigation to find a "scruffy-faced" bandit targeting local banks.

Reported robberies connected to the suspect span all the way back to August with the most recent being on Wednesday.

The first, on Aug. 11, began when a lone white male entered the SunTrust Bank at 2674 Sandy Plains Road in Marietta and passed a demand letter to the teller and left with an undisclosed amount of cash.

From that point until October 19, police believe the same man robbed the Bank of America at 10750 Alpharetta Highway in Roswell, Ga., the SunTrust Bank at 2880 Shallowford Road in Marietta, Ga., the First Citizens' Bank at 3060 Eagle Drive in Woodstock, Ga. and the Regions Bank at 865 Woodstock Road in Roswell, Ga.

In each incident, the suspect was described as a man in his 40s whose description varied in height from 5 feet 8 inches to 6 feet tall. One description of the suspect said he had a medium build with a brown mustache and beard, while another suspect appeared to weigh between 165 to 175 pounds and was said to have had a "scruffy beard or goatee". "Scruffy" was also part of the description on a later incident.

Though clothing varied, in most cases, the suspect was said to be wearing sunglasses and, in the most recent case, appeared to have bandages on one hand.

Acting Special Agent-in-Charge George Crouch of the FBI is now joining the Roswell Police Department, the Cobb County Police Department and the Cherokee County Sheriff's Office to investigate the incidents and find the serial bank robber.

Anyone with information on the incidents is asked to call Crime Stoppers Atlanta at 404-577-8477. All callers can remain anonymous.