A suicide bomber has struck in Kabul, just two days ahead of a major conference there on Afghanistan’s future.
Four civilians were reported killed in the blast, with many more people injured.
It comes despite increased security in the capital in the run-up to Tuesday’s international gathering.
The powerful explosion was apparently aimed at a convoy of foreign forces. There was no immediate word on military casualties.
Elsewhere, NATO said a foreign soldier died after a Taliban-style bomb blast in the south of Afghanistan.
Envoys attending the conference will include US Secretary of State Hillary Clinton. Today she arrived in neighbouring Pakistan.
Meanwhile UK press reports suggested an agreement could be reached to hand over full security control of Afghanistan to Afghan forces by the end of 2014.