MARIETTA - DeKalb County Police have arrested two women, and secured warrants on two others, who authorities say are connected to an organized identity theft ring that targeted airmen from the 80th Arial Port Squadron based out of Dobbins Air Reserve Base in Marietta.

Detectives believe the women, all of DeKalb, gained access to the secured member roster of the squadron in 2007. Since then, police say 20 reservists became victims of identity theft.

Detectives uncovered that the women "used personal information from the roster, such as dates of births, addresses and social security numbers to open online bank accounts," according to the DeKalb Police Department. "The suspects then made false deposits on these accounts and overdrew large sums of money."

Police estimate more than $50,000 was taken.

The two women who were arrested last month are Stacey Walker, 28, and Kenyatta Willis, said to be in her mid 20s. Warrants have been signed for Dianne Walker, 54, and Ebony Walker, 27. A warrant is pending for Taneshia Walker, said to be in her mid 20s.

Police spokeswoman Mekka Parish said authorities do not know how the women obtained the list.

"That's part of the investigation," she said.

Authorities believe the accounts were opened at Washington Mutual in DeKalb, Cobb, Fulton and Douglas counties.

The FBI and the United States Air Force Office of Special Investigations are involved in the investigation, which began in early 2009.

Anyone with information in this case is asked to call the DeKalb County Police Department's Fraud Unit at (770) 724-7700.

Dobbins officials said they have been "working diligently with local authorities in the investigation."

A statement from Dobbins released Friday notes recent measures that have been taken.

"Current military identification cards called Common Access Cards no longer contain social security numbers written on the outside. Instead, the information is stored electronically on the card. Documents containing private information are required to be locked away in files or shredded when they are obsolete," according to the statement.