ABC7 reported three fatalities, although emergency services had yet to confirm any toll.
Six people including three children were killed after a sightseeing helicopter crashed into the Hudson River in New York on Thursday, sparking a major water rescue operation, authorities said.
The crash killed all those onboard the aircraft: the pilot and a family from Spain. Two of the victims were initially taken to a hospital, but later succumbed to their injuries.
"At this time, all six victims have been removed from the water. And sadly, all six victims have been pronounced deceased," Mayor Eric Adams told a briefing, after earlier calling it a "heartbreaking and tragic crash."
The chopper's landing skids were seen protruding from the river beside a tunnel vent as several boats clustered around the impact site.
Police from both New York and New Jersey, which is on the opposite side of the river from Manhattan, responded to the scene along with fire department vessels.
The NBC4 channel reported that its own helicopter was unable to take off because of weather conditions, with the weather in New York on Thursday gusty under thick cloud cover.
Witnesses told the outlet that a rotor blade had come loose from the aircraft, while footage on social media showed pieces of the aircraft breaking off and the helicopter plunging into the waterway.
"A Bell 206 helicopter crashed and is submerged in the Hudson River in New York City," the Federal Aviation Administration said in a statement.
"The FAA and the National Transportation Safety Board will investigate."
- 'Heartbreaking' -
The river is a busy shipping channel and the scene of a dramatic 2009 incident when a US Airways jet safely landed in the water. All 155 people on board escaped with their lives in an event dubbed "Miracle on the Hudson."
The river is as deep as 200 feet (60 meters) at points, and an AFP correspondent saw what appeared to be floatation devices deployed on the aircraft's skids.
The average temperature of the river is 46 degrees Fahrenheit (8 degrees Celsius) at this time of year, according to the US Geological Survey.
"Three adults and three children were on board a Bell 206 helicopter that had left from the downtown Skyport at just about 3 pm," Adams said, adding that the tourists were a family from Spain.
Police and fire service (FDNY) divers raced to pull survivors from the wreckage, he said.
"NYPD divers pulled four people from the crash site, and FDNY Divers recovered an additional two. Immediate lifesaving measures were undertaken on the vessels at the scene, as well as the adjoining pier," police commissioner Jessica Tisch said.
"Four victims were pronounced dead on scene, and two more were removed to local area hospitals, where, sadly, both succumbed to their injuries."
They took off around 3 pm, flying south before heading up the Manhattan shoreline to the George Washington Bridge turning back towards the downtown Manhattan heliport, losing control and hitting the water near a Hoboken pier, she said.
The police commissioner said the aircraft was operated by New York Helicopter which did not respond to a request for comment but lists the Bell 206 among its fleet.
There have been around 30 helicopter crashes in New York since 1980, Brooklyn Borough President Mark Levine told reporters, calling for tighter restrictions on helicopter traffic in the city.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
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