The two US nationals were killed when the helicopter in which they were travelling crashed in a mountainous area in Dominican Republic.
The accident occurred in the northwestern town of Restauracion. The US nationals were returning from a humanitarian mission in neighbouring Haiti.
The chopper burst into flames before it crashed into a mountain Thursday night, police and civil defence officials said Friday.
The victims were identified as pilot John Ward and co-pilot James Jalovec.
The helicopter was scheduled to land at the airport in northern Dominican city of Santiago.