A Taiwan military helicopter crashed in a mountainous area near the capital Taipei on Thursday, killing eight people on board.
The defence ministry said five people had survived the crash, while a rescue team was still combing the crash site in New Taipei City.
Chief of general staff, Air Force General Shen Yi-ming, was among the dead.
In a statement, the military said the reasons for the crash, in the wake of a forced landing, are still being investigated.
"We must find out the reason for the incident," President Tsai Ing-wen told reporters in the northeastern county of Yilan. "Most importantly, (we) must ensure the stability of our military and national defence."


Rescuers pull four from flooded cave in Laos
Zambia steps up Ebola screening as neighbouring Congo sees cases rise
Pentagon chief says US ready to restart strikes on Iran if no deal
Flights briefly halted at Munich Airport over possible drone sighting
