Police said a 15-year-old girl robbed and fatally shot two men who had given her and a 14-year-old friend a ride to a motel, and both girls were arrested Thursday.

The killings were "very methodical," said John Bankhead, spokesman for the Georgia Bureau of Investigation (search).

The bodies of Fredrick Williams (search), 25, and Reante Stanley (search), 26, both of Dublin, were found hours after they were shot early Wednesday. The girls stole about $200 from the men, authorities said.

Police Chief Wayne Cain said the older girl flagged down the two victims on the side of the road and asked them to give her and her companion a ride.

On the way to the motel, the car made several stops, including at a home where the 15-year-old picked up the small-caliber gun she used in the shootings, Cain said.

The two men checked into separate rooms, and the 15-year-old later walked into each room and shot the men, Cain said.

District Attorney Craig Fraser said the girls will be prosecuted as adults. Fifteen-year-old Lakeisha Davis (search) of Dublin was charged with murder and armed robbery. The 14-year-old, who was not immediately identified, was charged with armed robbery.

Authorities said they did not know if the girls, who were being held at separate youth detention facilities, had obtained attorneys.

Dublin is 120 miles southeast of Atlanta.