A supply helicopter contracted to NATO crashed in Afghanistan eastern Kunar Province on Sunday, killing one and wounding three others, the alliance said in a statement, dpa reported.
The Mi-8 supply helicopter, contracted to the NATO-led International Security Assistance Force (ISAF), "was forced to make an emergency landing" after it took off from a military base in the province, ISAF said in a statement.
"One person on board the aircraft died and three were wounded during the incident," the statement said, but did not say if the victims were soldiers or civilians working for the contracted company.
The statement did not say if the hostile fire was the reason for the helicopter's crash.
Taliban insurgents are active in Kunar, which lies close to the border with neighbouring Pakistan. US forces operate in the area.