U-S officials say Afghanistan's Northern Alliance has informed Washington that its forces captured a number of senior Taleban leaders Thursday.
Details surrounding the alleged capture were not immediately clear. But U-S officials say the group did not include top Taleban leader Mullah Mohammad Omar or accused terrorist Osama bin Laden.
The officials say the United States would be interested in any intelligence information the captives could provide about the whereabouts of the Saudi fugitive.
Meanwhile, the commander of U-S-led military operations in Afghanistan says U-S forces are closing in on Osama bin Laden and his al-Qaida network.
General Tommy Franks says U-S special forces are on the ground in the vicinity of Kandahar - the Taleban stronghold in southern Afghanistan - interdicting traffic and spotting targets for U-S bombing runs.
The Pakistan-based Afghan Islamic Press (news agency) says heavy U-S bombing in Kandahar late Thursday and early today (Friday) destroyed the Taleban foreign ministry building and a mosque. The report said 11 civilians were also killed. The report could not be independently confirmed.
Battles are reported to be raging in northeastern city of Kunduz, near the Tajikistan border. News reports say Taleban and al-Qaida fighters in the city are under siege by opposition forces.