Kunduz: A magnetic bomb went off inside a National Directorate of Security (NDS) building in the northern city of Kunduz on Sunday, leaving four people injured, a department source told Sputnik.
The incident took place at 10:00 am (5:30 GMT).
According to the source, the bomb was planted on a car of the deputy head of the Kunduz NDS office. When the vehicle entered the building's premises and the official went to his workplace, a bomb detonated.
Four people sustained injuries, including the deputy's driver.
No militant group has claimed responsibility for the blast yet.
Afghanistan has witnessed a rise in bomb blasts and violent clashes since the beginning of Kabul-Taliban talks in Qatar, despite both sides expressing their desire to reach a secure and long-lasting ceasefire.
Read more: Car bomb in Afghanistan kills 12, wounds more than 100
(With inputs from ANI)