At least five people were shot on a subway in Brooklyn, N.Y., on Tuesday morning, authorities said, and a manhunt for a suspect was underway.

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The FDNY responded to reports of smoke at the 36th Street train station in Brooklyn, where multiple people were found shot just before 8:30 a.m. local time.

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According to a fire spokesperson, undetonated devices were also found at the scene.

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But the NYPD stressed that there were no "active explosive devices" found.

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According to a law enforcement source, the suspect used smoke devices during the shooting, and explosives were not used.

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Police were said to be seeking a man with a gas mask and an orange construction vest.

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Preliminary reports indicated that five people were shot, according to the Associated Press.

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The FDNY said that 13 people were injured and taken to area hospitals.

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