A leaky kitchen gas hose was blamed for an apartment building explosion that threw residents against walls, blew out their windows and hurled debris into the streets.
The explosion Saturday injured more than 20 people, including four badly burned girls.
Fire marshals believe natural gas leaked from a flexible hose connection behind a stove in a first-floor apartment, fire department spokesman Tony Sclafani said Sunday.
Local utility Consolidated Edison earlier said investigators checked pipes going from the street to gas meters and apartments and found all of them to be working properly.
The burned children were in critical condition at New York Presbyterian Hospital-Weill Cornell Medical Center.
The mother of the four girls, ages 1 to 5, was also in critical condition, said John Rogers, a hospital spokesman.
The father of the girls, Yemeni immigrant Rassas Alghaithi, told The New York Times after visiting the girls at the hospital: "I can't even recognize which is which." He said the girls were wrapped in bandages, with only their eyes visible.
Alghaithi, 27, said his wife was burned over a large swath of her body. His assessment was bleak. "She is not going to make it," he told the Times for its Monday editions.
The building has been shored up, but residents will not be allowed in until it is deemed safe for occupancy, said Robin Brooks, spokeswoman for the city's Department of Buildings.
The discovery of the submarine has unveiled a few "inconsistencies." For example, how can one explain the fact that the sub was found where it needed to be searched for from the start?
When on a state visit to Singapore, Russian President Vladimir Putin promised to revisit the discussion of the 1956 Declaration between the USSR and Japan regarding the issue of the peace treaty with Japan
The TurkStream, which runs along the bottom of the Black Sea from Russia's Anapa to Turkey, will consist of two lines, each with a capacity of 15.75 billion cubic meters of gas a year