Firefighters responding to reports of smoke on 36th Street at Brooklyn's Sunset Park station around 8:30 a.m. noted that at least 13 people were injured, but apart from five gunshots there were no details about the injuries from the American media.

Many people were shot dead at a subway station in Brooklyn in New York; US media reported Jas. The horrific incident occurred during shopping Tuesday morning, officials said, raising security concerns in one of the world's largest cities.

A New York Times report quoted a police officer as saying at least five people had been shot. According to the same message, police are looking for a man wearing a gas mask and an orange construction vest.

While some initial reports suggested the presence of explosives, the New York City Police Department wrote on Twitter: "Given the large number of people shot dead at 36th Street subway station in Brooklyn, there are NO active explosives.

 Firefighters responding to reports of smoke on 36th Street at Brooklyn's Sunset Park station around 8:30 a.m. said at least 13 people were injured, but apart from five gunshots there were no details on what caused the injuries, the Associated Press reported. According to several law enforcement sources familiar with the investigation, preliminary information suggests the suspect fled wearing a construction vest and gas mask.

Photos also videos from the scene showed people caring for passengers covered in blood lying on the station floor and the air thick with smoke. Multiple smoking devices were found at the site, the mayor's spokesman Fabien Levy, the Associated Press reported.