The incident happened in broad daylight around 8 a.m. on Friday, October 25, in the vicinity of East New York Avenue and East 95th Street in East Flatbush.
The 16-year-old victim was waiting for the B12 bus when a dark blue vehicle, possibly a livery taxi, pulled up next to her.
The suspect then exited the backseat of the vehicle brandishing a black firearm, pushed the victim into the car at gunpoint and sexually assaulted her inside the car.
The girl was then dropped off an undisclosed location. She was treated and released from an area hospital.
The suspect is described as a black male in his early to mid 30s, approximately 5-foot-9, with corn rows and possibly an African accent.
Police are also looking for the driver of the vehicle, described as a black male with a thin build.
Anyone with information regarding this incident is asked to call Crime Stoppers at 1-800-577-TIPS (8477).