Three people were killed and 11 injured when a roadside bomb hit a bus carrying Afghan government employees in Kabul on Thursday, officials reported.
The bombing comes on the day the Afghan government, Taliban and key countries, including the U.S. and Russia, meet in Moscow to push for a reduction in violence to propel the Afghan peace process forward.
A spokesman for the Kabul police confirmed the casualty tally but gave no further details. Another official said the vehicle was carrying Afghan government employees.
Abdul Samad Hamid Poya, a ministry adviser, said the blast hit a bus which was rented by the Afghan ministry of information and technology to transport employees.
He added that it was unclear at the moment who the victims are.
No one claimed immediate responsibility for the blast, but the Afghan government has blamed the insurgent Taliban for running an assassination campaign against government employees, civil society figures and journalists.
Taliban has denied being involved in the campaign.