The FDNY said they were called to the 36th Street subway station in Brooklyn’s Sunset Park neighborhood for smoke around 8:30 p.m. There, several people were found shot and the devices were discovered, FDNY said. According to a senior law enforcement official, the preliminary investigation shows that five people were shot and a possible smoke device was fired at the station. A second source also said that a person is in critical condition. Police said, according to a preliminary report, a male perpetrator who was probably wearing a gas mask and an orange construction vest escaped from the spot. The NYPD wrote on Twitter to avoid the area of 36th Street and 4th Avenue in Brooklyn. The Metropolitan Transit Authority, which manages the subways, says it is also investigating the incident and that trains D, N and R are heading in both directions in Brooklyn. This is a story that unfolds. He will be informed. CNN’s Kristina Sgueglia contributed to this report.