Four NATO soldiers were killed in two separate attacks in eastern Afghanistan Tuesday, the alliance said, DPA reported.
Three troops were killed by a roadside bomb and another died in combat with insurgents, the military said.
It did not reveal the nationalities of the deceased.
The deaths brought the total to 280 for the year. More than 65 coalition soldiers were killed last month, according to iCasualties.org, an independent website that tracks military fatalities in Afghanistan.