Tragedy struck New York City on Thursday when a tourist helicopter crashed into the Hudson River, claiming the lives of all on board, including a senior Siemens executive and his family.

Authorities have identified the victims as Agustin Escobar, an executive with European technology giant Siemens, his wife, Merce Camprubi Montal, and their three children, aged 4, 5, and 11.

The 36-year-old pilot, whose name has not yet been publicly released, also perished in the crash, law enforcement sources told ABC News.

Escobar, who held a key leadership role within Siemens, was reportedly in New York with his family for a brief vacation when the tragedy occurred. Details surrounding the cause of the crash remain under investigation by the National Transportation Safety Board (NTSB) and local authorities.

Eyewitnesses described scenes of chaos as emergency responders rushed to the scene, but rescue efforts proved futile.

Siemens has not yet issued an official statement but is said to be working closely with authorities and offering support to the grieving families.

Further updates are expected as investigations continue into the circumstances surrounding the fatal accident.