Islamabad, May 25: A Norwegian peacekeeper was killed in the Afghan capital, when a rocket-propelled grenade hit their convoy late on Sunday night. It's the first attack on the NATO-led peacekeeping force. Meanwhile a U.S. spokesman answered allegations from Islamabad that their forces had strayed into Pakistan during anti-terrorist operations. The American stated that their forces had accidentally crossed the border on 2 May, but following consultation with Pakistan they were clear that current operations were sticking to the Afghan side of the line. Bureau Report