NATO says four of its service members have been killed in two separate attacks in eastern and southern Afghanistan.
It said in a statement that three died in an insurgent attack in the east, and one in a roadside bomb explosion in the south. It did not release further details or the nationalities of those killed, but said all died on Friday.
The deaths raise the number of international troops killed in September to 11. A total of 334 members of the international military coalition have died do far this year.