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.

Fire in India’s Goa state kills at least 25
India caps airline fares as IndiGo crisis leaves hundreds stranded for fifth day
Pakistan, Afghanistan border clashes kill 5, officials say
Gaza talks at critical moment, ceasefire not complete, Qatar's PM says
Indonesians climb over logs in walk to aid centre as flood deaths rise over 900
