A security official said a blast hit an area not far from the US embassy in Kabul. (File)

A suicide attack on a convoy of military vehicles belonging to the NATO-led Resolute Support mission during the morning rush hour in Kabul on Wednesday killed four people and wounded 22, public health officials in the Afghan capital said.

© Thomson Reuters 2017

There was no immediate word on whether any foreign troops had been hurt in the attack, which hit a group of armoured personnel carriers designed to withstand large blasts.(Reporting by James Mackenzie; Editing by Paul Tait)