UPDATE 3:01 a.m. ET: A third suspicious object was reportedly found near the intersection of 5th Avenue between 28th St. and 29 St., according to WCBS-TV. The NYPD was on the scene and investigating whether it could have anything to do with the earlier explosion on 23rd St., which injured 29 people.
(TheBlaze/AP) — New York City Mayor Bill de Blasio says there is no reason to think that an explosion in Manhattan's Chelsea neighborhood had a terrorist connection, but he did call the blast an "intentional act."
However, the NYPD counterterrorism unit confirmed via Twitter that it was on the scene.
MSNBC aired what was purported to be video of the explosion.
A pressure cooker with wires was found just blocks away on W. 27th St. One image of the device showed what appeared to be a cellphone attached. The suspicious object was safely removed for analysis.
The mayor also said there is no specific connection to a pipe bomb explosion in the New Jersey shore town of Seaside Park earlier Saturday at a charity run. There were no injuries in that incident.
Fire Commissioner Daniel Nigro says a total of 29 people were injured in the Chelsea blast. He says one person's injuries were serious and the rest were minor.
The explosion occurred around 8:30 p.m. in the Chelsea neighborhood, according to J. Peter Donald of the New York City Police Department.
People have taken to social media posting pictures and videos at the scene:
Police Commissioner James O'Neill says officers are investigating a possible second explosive device a few blocks away from the explosion at about 8:30 p.m. on West 23rd Street.