Six people, including three children, were killed after a helicopter carrying a family of tourists crashed into the Hudson River in New York, authorities have said.

Five were from Spain, with the sixth being the pilot, New York City Mayor Eric Adams informed reporters on Thursday. The entire crew was on board the aircraft when it crashed, according to CNN.

As stated by New York Police Commissioner Jessica Tisch, the victims' identities will not be disclosed until their relatives have been notified. The cause of the crash is under investigated.

The incident is captured on video, with the chopper falling out of the sky upside down and plunging down in the Hudson River. Officials claimed the helicopter lost control shortly after turning at the George Washington Bridge to travel down the New Jersey coastline.

The helicopter flew for about 16 minutes before going down, CNN reported.