There is a massive police presence at the scene around 36th Street station.
The shooting occurred during the morning rush hour. Commuters and locals are standing by, watching as officials secure the scene and transport the injured.
Police in New York City said they are investigating a shooting that has left at least 13 people injured at a Brooklyn subway station.
According to the New York fire department, firefighters first responded to the 36th street station in Sunset Park around 0830 local times (1330 GMT) following reports of smoke.
First responders found gunshot victims and unexploded devices at the scene. However, it is unclear what type of devices were found.
Police have now said that there are no active explosive devices.
Citing an unnamed law enforcement official, the New York Times reports that police are seeking a man with a gas mask and wearing an orange construction vest.
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