U-S aircraft have resumed their attacks on Afghanistan's ruling Taleban movement north of the capital, Kabul.
Thursday's raid is the fifth consecutive day of U-S bombing on forward Taleban positions along the front line with the opposition Northern Alliance.
U-S warplanes also carried out another series of intense bombing raids in the area of the southern Afghan city of Kandahar - the headquarters of the ruling Taleban.
The Pakistan-based Afghan Islamic Press quotes a Taleban official as saying a bus in Kandahar was destroyed, killing many civilians in a fiery explosion. The Taleban has expelled most foreign journalists from Afghanistan, making it difficult for the outside world to examine and confirm casualty claims.
Meanwhile, a senior Taleban official dismissed a U-S warning that the Taleban might poison food aid being distributed in Afghanistan.
U-S forces have dropped more than 700-thousand food packets inside the country since they launched their bombing campaign on October seventh.