It was the latest of several such strikes that have upset relations between Afghanistan and the United States . NEW : Karzai : Civilian deaths causing serious tensions between Afghanistan and allies . Comment: The shift comes after an airstrike last week in Logar province that killed 18 people .
NEW : Karzai : Civilian deaths causing serious tensions between Afghanistan and allies . Comment: The shift comes after an airstrike last week in Logar province that killed 18 people .