A gunman opened fire and set off a smoke bomb inside a New York subway, leaving 30 people injured.

The shooter entered the train wearing a gas mask before he let off two smoke canisters and began firing a handgun.

Currently, five people are in critical but stable condition. There have been no deaths from the shooting.

Smoke devices, a handgun and a bag with ammunition were recovered at the scene. Investigators believe that the gun jammed preventing the gunman from firing.

Commuters were seen running from the subway, while others were left on the platform bleeding from gunshot wounds.

New York Police Commissioner Keechant Sewell said that while the shooter’s motives remain unknown, the incident is not being investigated as an act of terrorism.

According to New York Police Chief of Detectives James Essig, a man named Frank R James is a person of interest as rental van keys were recovered from the scene of the crime.

“The U-Haul key at the scene led us to the recovery of a U-Haul van a short while ago in Brooklyn, the male who we believe is the renter of this U-Haul in Philadelphia is a Frank R. James,” he said. 

New York police don’t currently have anyone in custody but are continuing to investigate.

Photo: Exit sign subway station photo by Guido Coppa available HERE and used under a Creative Commons licence. The photo has not been modified.