NATO says three American troops have been killed in three separate clashes in southern Afghanistan.
The military alliance says the three died in separate "hostile fire incidents." It did not disclose the exact location of the attacks.
The NATO statement said the first died of wounds suffered in an incident that occurred on Saturday, another died on Sunday and the third died Monday.
July was the deadliest month in Afghanistan for U.S. and NATO troops since the 2001 U.S. invasion. Seventy-five troops died. So far in August, at least 24 U.S. and NATO troops have died.