Tuesday, March 18
(New York, NY) -- Investigators with the NTSB say they've found a leak in a gas main near the site of last week's deadly explosion in New York City. The agency says the leak was found next to one of two collapsed buildings on Park Avenue in East Harlem. Authorities suspected a gas leak caused the explosion but until today, hadn't found the source. Eight people were killed and dozens more were injured in the explosion.