One Nato soldier was killed and two injured when an explosive device struck their vehicle in southern Afghanistan, officials said.
The incident occurred 35km (19 miles) west of Kandahar city on Monday, a spokesman for the International Security Assistance Force (Isaf) said.
The injured were taken to an Isaf hospital in Kandahar, Captain Andre Salloum told the AFP news agency.
The nationalities of the dead and injured were not given.
Panjwayi district, where the incident took place, was the scene of a big Isaf operation in September.
Isaf said about 1,000 Taleban rebels were killed in that operation.
More than 115 foreign troops have died in combat this year, about half of them Americans, reports say.