At least 15 people have been killed in a series of blasts that rocked the Afghan capital Kabul on Thursday.
Three bombs went off on a day when the chairman of the U.S. Joint Chiefs of Staff was meeting top American and NATO officials in the city.
A bus belonging to the ministry of mines and petroleum was targeted in the first explosion in eastern Kabul and soon after that, a second bomb went off nearby.
The third blast took place when a car was blown up in a separate district in the city.
The attacks came just three days before the official campaign season for the September 28 presidential election gets underway.

Kenya tourist helicopter crash kills seven
US, South Korea to cut length, scope of military drills after Trump order
Central African Republic gold mine collapse kills at least 100
Israeli airstrike kills nine Palestinians at Gaza police station
Thai schools hold shooting response drills after deadly school attack