UPDATE: 1:10 a.m. EDT — Authorities have found an explosive device — likely a pressure cooker with dark colored wiring on the top center — just blocks away from the site of the blast Saturday night that injured at least 29 people, CNN reported. The New York Police Department said the device, which has been removed from 27th Street, is under investigation.

UPDATE: 11:36 p.m. EDT -- Twenty-nine people confirmed injured because of the Chelsea explosion.

UPDATE: 11:23 p.m. EDT -- Alleged footage of the Chelsea explosion leaked on Twitter show when the bomb actually went off. 

UPDATE: 11:21 p.m. EDT -- Mayor Bill De Blasio said in a news brief Saturday night that there is "no specific, credible threat" of terrorism in New York City, but that this was an "intentional attack."

UPDATE: 11:11 p.m. EDT -- Police are telling people to avoid the Chelsea area near the 13th precint after a secondary device was found four blocks away from 23rd street.

Sources for NY1 say that more explosives were found around 23rd street. 

UPDATE: 11:04 p.m. EDT -- Police started rushing people off out of the subway in Chelsea after the explosion.

UPDATED: 10:57 p.m. EDT -- The mayor will conduct a briefing at 11 p.m.

UPDATE: 10:55 p.m. EDT -- Another explosive device may have been found a couple blocks away from the original blast site.

UPDATE: 10:50 p.m. EDT -- The police may have found a suspect.

UPDATE: 10:45 p.m. EDT -- President Obama has just been briefed on the explosion.

UPDATE: 10:43 p.m. EDT -- The explosion has led to major subway service changes.

There is no 1 and 2 train service between 34 St-Penn Station and Chambers St in both directions, according to MTA's website. There is no F train service between Jay St-MetroTech and 21 St-Queensbridge in both directions. Some northbound F trains are running on the G line between Bergen St and Queens Plaza in both directions. Some southbound E trains are running on the R line from 36 St-Queens to Whitehall St-South Ferry and terminate. Some southbound E and F trains will terminate at 21 St-Queensbridge.

UPDATE: 10:36 p.m. EDT -- The official Twitter account for NYPD Counter-Terrorism confirmed 25 wounded in the explosion.

Original Story:

An explosion rocked Chelsea in New York City on Saturday night.

The blast happened at around 8:30 p.m. in the Chelsea area on 23rd street between 6th and 7th avenues.

According to the New York Post, it was a dumpster that blew up, blowing out the lower windows of a 14-story residence for the blind. Police sources told The Post that at least 25 suffered minor injuries from what may have been an explosive device.

The NYPD are investigating the explosive device inside the dumpster, according to sources for NY1. 

One neighbor described the explosion as "deafening," while other witnesses described hearing a massive noise — “100x louder than thunder,” one tweeted, according to The Post.

“It was a quiet night, and then I heard this deafening boom,” Jakir Aussin, who works at a Dunkin Donuts at 23rd and Sixth Avenue, told The Post “My first thought was, ‘Oh god, a bomb,’ so I got down on the floor.”

According to USA Today, the New York City Counter-Terrorism unit has responded to the blast. Transit service in the area has been shut down, according to the New York Fire Department. 

The hashtag #Chelsea started trending on Twitter moments after the explosion was reported.

This comes just hours after a pipe bomb exploded in Seaside Park, NJ. The device was placed in a garbage can.

More is developing on this story...