A government spokesman declined to comment. Earlier the government said 12 people had been killed. The Taliban claimed responsibility for the attack
At least three gunmen stormed the base following the explosion, igniting a firefight with Afghan security forces. All three gunmen were later killed in the exchange, according to a provincial official. "So far our reports show 12 have been killed and 20 wounded, most of whom were Afghan security forces," Akhtar Mohammad Taheri - the head of Wardak provincial council - told AFP.