An Afghan official says five people were killed in a suicide truck bombing, which also wounded more than 60 in the capital of the southern province of Zabul.
Zabul police chief Mirwais Noorzai said on May 25 that the attack occurred at the entrance to the provincial council's compound in Kalat.
Noorzai says the attacker detonated explosives inside a small truck.
The Taliban claimed responsibility for the attack.
Insurgent activity in Zabul, which borders Pakistan, has intensified in recent months.
The province also has seen a number of kidnappings, especially of minority Hazara Shi'ite men.