A car bomber attacked a Nato convoy in the Afghan capital today, killing at least six people and wounding more than 30, officials said.

Thirteen people killed when a suicide bomber rammed a military convoy in Afghanistan included five coalition troops and eight civilian contractors, Nato has said.

A Taliban suicide bomber rammed a van into an armoured Nato bus today in Kabul, killing 13 American troops and four Afghans, US and Afghan officials said, in the deadliest attack on coalition forces in more than two months.