A woman who died in a helicopter crash in New York is believed to have been a 40-year-old British woman living in Australia, police said.
She was one of four tourists on board the aircraft that plunged into the East River shortly after taking off.
Two of the injured are now fighting for their lives in hospital and another passenger is in a serious but stable condition.
Three of the four passengers are believed to be British, New York Mayor Michael Bloomberg said.
A spokesman for the New York Police Department said of the casualties: "Two females are in an extremely critical condition at Bellevue Hospital and one male is in a serious but stable condition at NYU Hospital.
"All four were known to each other. We do not know if they were blood relatives or just friends, but they were travelling in a group."
A spokesman from the New York City Fire Department said one of the injured women had suffered a cardiac arrest and the other a respiratory arrest.
The American pilot, Paul Dudley, director of Linden Airport in New Jersey, did not need hospital treatment.
The accident happened just after 3.20pm local time on Tuesday, shortly after the helicopter lifted off from the busy 34th Street Heliport.
Mayor Bloomberg said it had been "a terrible accident" involving people who had come "to see the best of our city".