DEVELOPING: At least 25 people were injured after an explosion in Manhattan Saturday night, emergency workers confirmed to Fox News.
— N∑H∆ (@nnehajainn) September 18, 2016
The blast was heard on West 23rd Street between 6th and 7th Avenues in the city’s Chelsea neighborhood. Police counterterrorism officers, a bomb squad and firefighters rushed to the scene.
We are responding to an explosion at West 23 / 6 Ave. – updates to follow
— NYPDCounterterrorism (@NYPDCT) September 18, 2016
All of the injured were expected to survive, the FDNY added.
A witness described the explosion as “very forceful,” telling Fox News it sent a “big cloud of black smoke” into the air as witnesses ran.
Investigators did not immediately give details on what may have caused the blast. Earlier Saturday, a planned charity run for Marines and sailors was canceled after a pipe bomb exploded in Seaside Park, New Jersey, a 90-minute drive south of New York City.
Police blocked off nearby streets as the investigation continued.
The initial call came in at 8:40 p.m. Eastern time, police said.
City Councilman Corey Johnson, who represents the area, told cable news station New York 1 that FBI and federal Homeland Security officials were on the scene, in addition to New York City police.
The Associated Press contributed to this report.