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.

Iran studying deal to halt war as stalemate persists
Israel strikes south Lebanon after holding off Beirut attack
Russian drones, missiles strike Ukraine killing 11, wounding over 100
Two killed in Kenya protest against US Ebola quarantine facility as Ruto defends plan
UN warns of extreme heat risk from El Nino and urges preparedness
