Explosion In Chelsea Neighborhood of New York City Injures 29

FBI agents review the crime scene on West 23rd St. in Manhattan on September 18, 2016. An explosion that injured 29 is being labeled an "intentional act." A second device was found four blocks away. (Photo by Stephanie Keith/Getty Images)

FBI agents review the crime scene on West 23rd St. in Manhattan on September 18, 2016. An explosion that injured 29 is being labeled an “intentional act.” A second device was found four blocks away. (Photo by Stephanie Keith/Getty Images)

FBI agents review the crime scene on Wesr 23rd St. in Manhattan’s Chelsea neighborhood on September 18, 2016. An explosion that injured 29 is being labeled an “intentional act.” A second device was found four blocks away. (Photo by Stephanie Keith/Getty Images)