A plume of smoke is rising above New York City after a building collapse.
Emergency services can be seen battling the flames and nearby roads are blocked.
One person has been critically injured in a building collapse in New York.
It happened in the city's East Village neighborhood.
A residential apartment building has been engulfed in flames and heavy smoke. There were also reports of a large explosion at the scene.
Police in New York have identified the seven children who died in a house fire in Brooklyn as five-year-old Yaakob Sassoon,Sara, 6, Moshe, 8, Yeshua, 10, Rivkah, 11, David, 12, and 16-year-old Eliane.
More than 100 firefighters battled the blaze which erupted in the early hours of the morning, and brought it under control within an hour but the children could not be saved.
The bodies of the victims were found in their bedrooms near the back of the home after their mother, 45, and another teenage daughter jumped to safety.
The blaze was apparently started accidentally by a hot plate according to Fire Commissioner Daniel Nigro.
New York Mayor Bill de Blasio visited the scene and told reporters: "This is an unbelievable tragedy. Every New Yorker is feeling this pain right now.
"You can literally see what was a home for a large and strong family and now it is wiped out, every room empty and burned."
De Blasio asked for the surrounding community to support the family's grieving father, who was apparently away for a conference overnight.
A malfunctioning hotplate may have caused the fire that killed seven children when it ripped through a New York home.
The dead range in age from five to 15 years while the children's mother and a teenager who jumped from the second floor are in hospital in a critical condition.
The fire broke out early on Saturday in a Brooklyn neighbourhood largely populated by Orthodox Jews.
New York City's fire commissioner Daniel Nigro said the hotplate was left on because of Sabbath prohibitions against cooking.
"This is the largest tragedy by fire that this city has had in seven years," an emotional Nigro told a press conference.
"It's a tragedy for this family, it's a tragedy for this community, it's a tragedy for the city."
Neighbour Nate Weber told the New York Daily News he heard the children's mother yelling for someone to rescue her children after she jumped from a window.
"I heard a woman yelling: 'My kids are in there. Get them out! Get them out!'" he said.
Seven children believed to be from the same family have died in a house fire in Brooklyn, New York.
The New York Fire Department said the children were aged between 5 and 15. Two people are also in critical condition following the blaze.
More than 100 firefighters were sent to tackle the fire at a house in the Midwood area in the early hours.
The cause of the blaze is being investigated.
New Yorkers were feeling the cold as temperatures plummeted to as low as -15C causing the Hudson River to freeze over.Read the full story ›
The US National Weather Service (NSW) has admitted it made an error when it predicted a "potentially historic" storm would hit New York.
Despite severe warnings from forecasters, New York escaped the worst of the storm.
New York City Mayor Bill de Blasio has had to defend himself against claims he overreacted ahead of the storm.
"The result is much less snow than previously predicted," the NSW said on Facebook.
"Rapidly deepening winter storms are very challenging to predict."
New York has downgraded the blizzard they thought was about to hit to a "winter storm".
However, the streets of the city remained practically deserted after a travel ban was lifted.
More than 7,000 flights were cancelled and gusts of 70mph were felt in New York's Long Island district - but the worst could be yet to come.
ITV News Correspondent Emma Murphy reports:
A 17-year-old boy has died after snow-tubing down a New York street and crashing into a lamppost.
Suffolk County police named the teenager as Sean Urda and said he was one of three youngsters taking turns snow-tubing in Long Island on Monday night.
He was taken to a hospital, where he was pronounced dead.
Long Island was under a blizzard warning at the time of the crash.
The "crippling" snow predicted to fall in the US is not as bad as expected.
A blizzard did come, but instead of dropping 3ft (90cm) of snow across the north east of America dumped 1ft (30cm).
Travel bans were imposed, schools were closed and cities effectively shut down in anticipation of the snowfall.
John Davitt, a meterologist on New York's NY1 news channel said: "When you hear the word 'crippling' and you look out your window this morning, it is not there."
Parts of Connecticut and Massachusetts saw the heaviest snow while just 6 inches fell in New York City's Central Park.
And some visitors to the city appeared to be enjoying the snow.
However travel was still snarled with more than 4,500 flights cancelled at US airports, according to FlightAware.com.