New York Governor Andrew Cuomo,(L) looks on as New York City Mayor Bill de Blasio(2nd-L) speaks with NYC OEM Commissioner Joseph Esposito(C) near the scene of an explosion on West 23rd Street September, 18, 2016 in New York. An explosion rocked one of the most fashionable neighborhoods of New York on September 17 night, injuring 29 people, one seriously, a week after America's financial capital marked the 15th anniversary of the 9/11 attacks. Mayor Bill de Blasio indicated the blast was not accidental, even if there was no known link to terrorism. The blast occurred in Chelsea -- an area packed with bars, restaurants and luxury apartment blocks -- at a typically bustling time of the weekend. / AFP PHOTO / Bryan R. SmithBRYAN R. SMITH/AFP/Getty Images