Wed Sep 17, 3:39 AM ET
The military did not identify the victims, but most foreign troops serving under coalition force in eastern Afghanistan are Americans.
The toll is the bloodiest in a single attack in recent weeks in Afghanistan, where the al Qaeda-backed Taliban have stepped up their campaign of suicide attacks and roadside bomb blasts against the government and foreign troops backing it.
At least 194 foreign soldiers have been killed in Afghanistan in 2008, the deadliest year for the foreign forces since U.S.-led troops removed the Taliban from power in 2001.
The resurgent Taliban have made a come back since 2005 and have gradually extended the depth of their attacks despite the increase in number of foreign troops, now standing at more than 71,000.
Separately, the guerrillas freed a member of the upper house of the parliament who they had kidnapped more than two months ago from a province to the south of Kabul, the parliament said on Wednesday.
It said the release was secured following the mediation of the area's tribal chiefs, but the Taliban said the government had freed three of their jailed militants in a deal.
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