Afghan security officials say a suicide bomber killed four civilians in an attack apparently aimed at a convoy of foreign troops in Kabul.
The attack took place near a health clinic on a road often used by foreign troops. Four Afghan civilians were wounded. There was no immediate word about casualties among the foreign forces.
The blast came just two days before dozens of foreign officials -- including UN Secretary General Ban Ki-moon and U.S. Secretary of state Hillary Clinton -- were due in Kabul for an international conference on Afghanistan's future.
compiled from agency reports