Two soldiers in the NATO-led force in southern Afghanistan died in attacks while troops killed four militants in a raid on a bomb cell, the military said Tuesday. The latest killings in a grinding insurgency came as the top US military commander and special envoy to the region were in neighbouring Pakistan for talks on efforts to quash militants. An International Security Assistance Force soldier was killed and three wounded in a bomb strike in southern Afghanistan, ISAF said in a statement. The 42-nation ISAF leaves the announcement of the nationalities of its casualties to their home nation.