Tens of thousands of civilians require immediate international humanitarian assistance as a result of escalating fighting on both sides of the Afghanistan-Pakistan border since the beginning of August, Amnesty International said today. More than 20,000 people have fled from Pakistan to eastern Afghanistan to avoid fighting between government forces and pro-Taleban insurgents in Pakistan’s Federally Administered Tribal Areas (FATA), while FATA authorities have asked Afghan refugees in Bajaur Agency to leave the area.