The Sullivan County Sheriff's Office received a 911 call from bank employees at 8:53 a.m., reporting the robbery.
A preliminary investigation indicated when two female bank employees arrived for work, two male suspects surprised the employees at the south employee entrance door and forced them inside the bank at gunpoint.
The suspects secured the hands and feet of both females with plastic ties and then removed an undermined amount of U.S. Currency from the bank vault.
The suspects fled the scene in a gray 2011 Chevrolet Malibu, owned by one of the victim bank employees.
During a brief, initial scuffle, a female employee received a minor head wound and was treated at the scene by Sullivan County EMS.
The suspects were described as black males, unknown age, approximately 5-foot-10 to 6-foot 2, slender to medium build wearing dark masks over their faces, dark hooded sweatshirts, and one suspect was wearing brown leather type boots with a decorative buckle.
The weapon believed to be used in the robbery was a silver, small caliber revolver.
The 2011 Chevrolet Malibu was located minutes later at the nearby Ash Park Apartments in Carlisle.
The vehicle was recovered and taken to the Putnamville Post for evidence processing.
Officials are urging anyone with information regarding this investigation to contact the Putnamville Post at 765-653-4114 or the Indianapolis Office of the FBI at 317-595-4000.