Police are investigating after a man armed with a handgun robbed a Franklin SunTrust Bank late Friday evening. The robbery was reported just before 6 p.m. at the branch located at 731 Cool Springs Boulevard. The suspect, who was last seen wearing a hooded black jacket, olive green pants, black shoes and a mask, entered the bank and demanded cash. The man fled the scene after receiving an undisclosed amount of cash. The suspect is described as a tall, slender white male. No injuries were reported in the incident. Anyone with information on the robbery or the suspect's whereabouts is urged to contact police at 615-794-2513. An anonymous tip can also be sent to police by texting the keyword 615FPD, along with a message to 847411.