New York City Mayor Bill de Blasio (L) and New York Gov. Andrew Cuomo (R) take a tour of damage on Sunday after a powerful explosion from a bomb went off in Manhattan around 8:30 p.m. on Saturday, injuring 29 people. Both officials said security in New York would increase as the United Nations General Assembly is set to begin. Photo by John Angelillo/UPI | License Photo

New York City Mayor Bill de Blasio (R) and New York Gov. Andrew Cuomo (L) take a tour of the damage one day after a powerful explosion from a bomb went off on West 23rd Street in Manhattan on Saturday, injuring 29 people, shattering windows and prompting widespread street closures. Cuomo and de Blasio said there would be an increase in security in the city this week as world leaders converge for the U.N. General Assembly. Pool photo by Justin Lane/UPI | License Photo

NEW YORK, Sept. 19 (UPI) -- New York City is increasing security as world leaders converge for the U.N. General Assembly by deploying an additional 1,000 police and National Guard troops in the wake of bombings in Manhattan and New Jersey.

New York Gov. Andrew Cuomo on Sunday said he and other officials made the decision to increase security deployment though there is "no reason to believe at this time that there is an immediate threat" following an explosion on Saturday in Manhattan's Chelsea neighborhood that injured 29.


The 1,000 additional security personnel will be deployed to bus terminals, airports and subway stations throughout the state.

"I want New Yorkers to be confident when they go back to work on Monday that New York is up and running and that we're doing everything we need to do. And I feel comfortable that this additional deployment will help do that and is prudent on this occasion," Cuomo said, referring to the arrival of heads of state from around the world.

President Barack Obama, who arrived in New York City on Sunday, is scheduled to speak at the 71st session of the U.N. General Assembly on Tuesday, his final address to the chamber as the U.S. president.

The Metropolitan Transportation Authority is increasing security patrols and bag-checks in New York City.

"You should know that you will see a very substantial NYPD presence this week -- bigger than ever," New York City Mayor Bill de Blasio said Sunday. "We would normally have an expanded presence for the United Nations General Assembly. You will see an even stronger presence now."

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De Blasio has called on New York residents to be aware of possible security threats.

"Be vigilant because the police need your help, and if you see anything that might be pertinent to this case, we need you to call it in," De Blasio added.