The attacks Monday came in the north and south of the country, NATO said. No other information was released in accordance with standard procedure.
The deaths bring the number of international troops killed in Afghanistan this month to 44, including 29 Americans, according to a count by The Associated Press. Sixty-six American troops were killed in July, making it the deadliest month for U.S. forces in Afghanistan since the 2001 invasion.
Monday's casualties follow the deaths Sunday of four U.S. troops amid fierce fighting in eastern and southern Afghanistan.