A US embassy convoy was hit by a suicide car bomber in the Afghan capital today, wounding officials in the motorcade and pedestrians, police and an embassy spokesman said.
One police officer at the scene had earlier said some people were thought to have been killed in the attack, which took place on a main road leading east out of Kabul which is often used by NATO and US-led coalition troops.
But Ali Shah Paktiawal, a senior Kabul police officer, said no Afghan civilians had died.
US embassy spokesman Joe Mellott said he was unaware of any deaths. Several embassy officials and pedestrians were wounded, Mr Mellott said, adding that the injuries of some officials were "serious". US Ambassador Ronald Neumann was not in the convoy.
Western troops had sealed off the site of the attack, one police officer said, and a helicopter hovered above.
A witness saw, from a distance, smoke rising from a car at the scene. Mullah Dadullah, a senior Taliban commander, claimed responsibility for the attack and said several US soldiers had been killed in the blast.
The rebels planned more attacks, he told the Reuters news agency by satellite phone from a secret location. The attack comes amid an increase in Taliban raids, including suicide attacks, in recent weeks as fighting picks up after a relative winter lull.
Nato launched an offensive in southern Afghanistan this month to pre-empt a spring offensive by the rebels.