Two civilian contractors working for the US Central Intelligence Agency (CIA) were killed during an ambush on Saturday, the CIA said in a statement on Tuesday.
The two people, William Carlson and Christopher Glenn Mueller, both veterans, were killed near Shkin, a village in eastern Afghanistan, while tracking terrorists operating in the region, the statement said.
Carlson, 43, of North Carolina, had extensive experience in Army special operations, and 32-year-old Mueller, of California, was a veteran of Navy special operations, according to the statement.
The statement said the agency consulted with families of the two officers, and determined their names could be released without compromising ongoing operations or current intelligence activities.
With Carlson and Mueller, the CIA has so far acknowledged that four of its operatives have been killed in Afghanistan since the Sept. 11, 2001, terrorist attacks on the United States.
The two, working as contractors, were not CIA staff employees, and the area in which they were operating is in the remote mountainous region along the border between Afghanistan and Pakistan.