Sixteen people have been injured in a shooting during the morning rush hour at a New York City subway station.
The unidentified attacker detonated a smoke bomb and opened fire at Brooklyn’s 36th Street station at 08:30 local time (12:30 GMT), police said.
Images from the scene showed bloodied passengers lying on the floor of the smoke-filled station.
Officials are appealing for information about the gunmanwho fled the scene and is still at large.
“An individual donned a gas mask, he then opened fire striking multiple people on the subway and on the platform.” New York City Police Commissioner Keechant Sewell said.
The attacker then fled the station wearing what Ms Sewell said was a green construction-type vest and a grey sweatshirt.
“This is not being investigated as an act of terrorism at this time,” she added.
Five people are in a critical but stable condition. None of the injured are believed to be in a life threatening condition, police said.
No motive for the attack has been given.
“My subway door opened into calamity. It was smoke and blood and people screaming,” eyewitness, Sam Carcamo, told the Associated Press. He added that a billow of smoke poured out of the train once its doors opened.
Another witness, identified only as Claire, told the New York Post that she had “lost count” of the number of shots that were fired.
The woman said she saw the suspect dropping “some kind of cylinder that sparked at the top” – initially believing him to be a subway worker because of the vest she said he was wearing.
New York’s fire department told the BBC it originally received a call about smoke inside the station.
But officials arrived to find multiple people shot and injured.
Both President Joe Biden and Attorney General Merrick Garland were briefed on the incident.
US cities have seen a troubling rise in gun violence incidents over the past two years.