Six US soldiers have been wounded in a suicide attack in the Afghan capital.
Initial reports were that the blast was caused by a suicide car bomb.
Two civilians were also killed and about two dozen wounded in the blast, which was claimed by the Taliban insurgent group.
Elsewhere, Kyrgystan will order the closure of a US military airbase used to support operations in Afghanistan ‘in a matter of days’ under pressure from Russia.
The presidential decree on the annulment of the agreement with the United States is already prepared.
Russia had urged Kyrgyz President Kurmanbek Bakiyev to announce the closure of the base in exchange for financial help to the cash-strapped Central Asian nation.