Investigators now say that gas was detected in the ground hours after an explosion that left eight people dead in East Harlem.
Residents living near a pair of East Harlem buildings claim that they smelled gas in the area the night before a deadly explosion.
An exclusive video obtained by CBS 2 showed the deadly blast that took down two buildings in East Harlem as it happened.
Con Edison crews discovered an alarming natural gas concentration near the scene of the deadly East Harlem building explosion this week, a National Transportation Safety Board member said Friday.
Eight people are now confirmed dead in the blast that also injured more than 60 others. Others are still believed to be missing.
City officials were refuting reports Thursday that complaints about gas leaks at the site of Thursday’s massive explosion in East Harlem were ignored by police, fire and Con Edison.
Investigations into the East Harlem explosion have been launched by the Fire Department of New York, Con Edison, as well as the National Transportation Safety Board.
Riders complained about service delays caused by electrical problems, crowded trains and heating and cooling problems.
Regulators investigating the fatal Metro-North Railroad train derailment recommended Tuesday that the railroad install recorders on its vehicles and new speed-limit signs along its tracks.
Officials said Tuesday that the Metro-North derailment in the Bronx caused more than $9 million in damage.
The engineer who was at the controls when a train derailed and left four people dead this past weekend has been suspended without pay.
The focus has pointed increasingly to human error in the investigation into the deadly Metro-North train derailment in the Bronx, after a union officials said the engineer “nodded off” at the controls and “zoned out” before the accident.
The National Transportation Safety Board has removed the union representing Metro-North Railroad operators from the investigation into the deadly derailment in the Bronx this past weekend.
Safety officials have championed what’s known as positive train control technology for decades, but the railroad industry has sought to postpone having to install it because of the high cost and technological issues.
Chief Engineer Robert Puciloski, who appeared at the National Transportation Safety Board hearing in Washington, D.C., said the railroad is “behind in several areas,” including a five-year schedule of cyclical maintenance that had not been conducted in the area of the Bridgeport derailment since 2005.