Good Morning America By DEAN SCHABNER, EMILY SHAPIRO and AARON KATERSKY 14 minutes ago
An explosion in New York City's Chelsea neighborhood Saturday night that injured at least 29 people appears to have been "an intentional act," Mayor Bill de Blasio said, and a possible second device was removed several blocks away.
The mayor said that although investigators believe it was intentional, there appeared to be no link to terrorism.
The cause of explosion has not been determined, said New York City police commissioner James O'Neill.
There is no credible threat to the safety of New Yorkers, the officials added.
Bomb-sniffing dogs deployed in NYC's Chelsea neighborhood after reported explosion. Follow @ABC for latest. pic.twitter.com/fH6uF0hGqD
— Paul Blake (@PaulNBlake) September 18, 2016
The "large explosion" on 23rd Street between Sixth and Seventh avenues was seen by police officers driving by around 8:30 p.m., according to police. The fire department heard the explosion and responded immediately.
While the scene active and not secure, crews rushed in to treat the injured. Of the 29 injuries, one is considered to be serious, police said.
Officials said the NYPD has video it is reviewing and De Blasio urged any witnesses or people who may have information to come forward.
Two law enforcement sources said the explosion occurred in a dumpster, and the NYPD Counterterrorism Bureau tweeted a photo of a mangled dumpster, after tweeting that they were responding to an explosion at West 23rd Street and Sixth Avenue.
The New York Police Department Bomb Squad was searching the area, checking garbage cans, for any other possible explosive devices.
Meanwhile, a "possible secondary device" was located a few blocks away on 27th Street, between 6th Avenue and 7th Avenue, the NYPD Special Operations Division said around 11 p.m. The device was being removed by authorities around 12:30 p.m. Law enforcement sources said the device was a pressure cooker, with a cell phone and wires attached, that was found in a plastic bag.
The mayor said the Chelsea explosion has no apparent connection to the explosive device that detonated in Seaside Park, New Jersey, this morning. Nobody was injured in the New Jersey incident, which occurred at a time when a 5k run to benefit U.S. Marines and sailors was scheduled, but the race was delayed because so many runners had signed up.