KABUL, Afghanistan (AP) — A suicide bombing attack on a NATO convoy in southern Afghanistan on Wednesday left two American service members dead, a Pentagon spokesman said, despite repeated refusals by the U.S. military in Afghanistan to say whether there were any deaths in the assault claimed by the Taliban.

Navy Capt. Jeff Davis confirmed the casualties in the attack near Kandahar city. The Pentagon's decision to release the figures seemed to contradict orders issued two months ago by Army Gen. John Nicholson, the top U.S. commander in Afghanistan, barring information about U.S. combat deaths...