Dozens injured in explosion in NYC explosion; Mayor calls it ‘intentional act’

NEW YORK— At least 24 of those injured in an explosion in New York City's Chelsea neighborhood have been hospitalized, the fire department says.

The investigation into what caused the explosion, who is behind it and what damage it has caused is ongoing, New York officials say.

NYPD Commisioner James O'Neill says they believe the explosion took place on the street. Officials say they believe the explosion was intentional and urged anyone with information on what they saw, or anyone with pertinent photos from the scene, to come forward.

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A device at a second location in Chelsea appears to be a pressure cooker with dark colored wiring coming out of the top center of the device. The device, mentioned earlier by police, is connected by silver duct tape to a small dark colored device attached to the outside of the pressure cooker, according to multiple local and federal law enforcement officials.

None of the officials would say at this point what was inside the pressure cooker.

Police say they have video from the scene and are collecting more. But police say it is too early to give out details beyond saying the explosion was outside, in a Dumpster or receptacle of some kind.

New York City Mayor Bill de Blasio says early indications are that the explosion "was an intentional act."

But de Blasio says "there is no evidence at this point of a terror connection" and there is no "credible and specific threat" to New York City.

The mayor says they also believe here is no specific connection to the earlier incident in New Jersey.

De Blasio says he can confirm "none of those injured are likely to die."

New York Governor Andrew Cuomo released a following statement on the explosion.

"State officials are coordinating our response with federal and New York City authorities, and full state resources have been made available for this investigation," Cuomo said. "We are closely monitoring the situation and urge New Yorkers to, as always, remain calm and vigilant."

"We are in close contact with health providers to monitor the extent of the injuries and will provide information as it becomes available."