Brooklyn attack: People tweeted photos showing commuters with blood on their clothes being helped by others, as they sat with their back to a metro train

Several people were shot at in a subway station in New York’s Brooklyn, local media reported. People tweeted photos showing commuters with blood on their clothes being helped by others, as they sat with their back to a metro train. At least 13 were injured, news agency AFP reported.

Some reports said explosives were found at the site of the attack, which happened during the morning rush hour at 8:30 am local time. Trains have been stopped, local media reported.

The New York Police Department, or NYPD, tweeted, “Due to an investigation, avoid the area of 36th Street and 4th Avenue area in Brooklyn. Expect emergency vehicles and delays in the surrounding area.”

The NYPD said there are “no active explosive devices”.

“In regard to the multiple people shot at the 36th Street subway station in Brooklyn, there are NO active explosive devices at this time. Any witnesses are asked to call @NYPDTips at #800577TIPS. Please stay clear of the area. More provided information when available,” NYPD tweeted.

A Twitter user posted a video of the subway where the people were shot. Smoke could be seen in the video, from what appeared to be something burning.

The authorities are yet to confirm if this was a terror attack.

Some photos on social media show blood on the floor of a metro coach in the Brooklyn subway. Several Twitter users have indicated this could be a terror attack.

NY1 News reported the suspect wore a construction worker uniform and a gas mask.