At least 3 dead, nine people missing after N.Y. building collapse ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Adnan Islam/Reuters Smoke poured from the site of an explosion and building collapse in East Harlem on Wednesday afternoon. EMMANUEL DUNAND/AFP/Getty Images New York Mayor Bill de Blasio addressed the press at the site of an explosion and building collapse where at least three people were killed. Jeremy Sailing/AP The blast happened after a neighbor in the area reported smelling natural gas. ERIC THAYER/REUTERS A sign warned of delays at Grand Central Station. ERIC THAYER/Reuters New York City firefighters examined the rubble after a deadly building collapse in Harlem. Mark Lennihan Alecia Thomas (left) was comforted by her friend, Shivon Dollar, after the collapse. Justin Heiman/Getty Images Smoke filled the air after the explosion and collapse. ERIC THAYER/Reuters ‘‘There are a number of missing individuals,” New York City Mayor Bill de Blasio said at a press conference. STAN HONDA/AFP/Getty Images Bystanders covered their faces as smoke filled the area. Firefighters battled a fire after a building collapse in New York. MIKE SEGAR/REUTERS The site is near Metro-North commuter railroad tracks, off the northeastern tip of Central Park. ANDREW GOMBERT/EPA Firefighters and police were on the scene where a group of buildings were damaged. Andrew Burton/Getty Images Heavy smoke poured from the debris as the New York Fire Department responded to a 5-alarm fire and building collapse. SHANNON STAPLETON/REUTERS The New York City Fire Department was searching for anyone trapped in the debris, officials said. Mark Lennihan/AP Reports of an explosion were heard before the collapse.