A federal agency's investigation alarmed some Smyrna-Vinings commuters Thursday evening.
Smyrna-Vinings Patch recieved reports from Twitter followers of helicopters hovering over a Vinings apartment complex near the intersection of U.S. 41 and Cumberland Boulevard.
Cobb County Police Department's Public Information Officer Mike Bowman said that the department was assisting an unidentified federal agency with an investigation at the complex. He said the investigation was confined to the rear of the complex and that no residents were in eminent danger. The invesigation did not impact traffic.