KABUL, Afghanistan (AP) — U.S. forces in Afghanistan revised on Tuesday the death toll from a Taliban attack the previous day near the main American base in the country, saying three service members were killed but not a contractor who was initially reported among the fatalities.

The U.S. and NATO Resolute Support mission issued a statement "to clarify initial reporting" about Monday's roadside bombing of an American convoy near the main U.S. base. The Taliban claimed responsibility for the attack.

The Pentagon said later that all three service members killed were Marines.

The mission said a r...