At least one suicide car bomber and a number of gunmen attacked a provincial police headquarters in Afghanistan on Tuesday. <br/><br/>The Taliban claimed the responsibility for the attack.<br/><br/>A police official said the exact casualty toll was unclear as the attack was ongoing in Gardez, the capital of Paktia province.<br/><br/>According to a statement by the Interior Ministry, the attackers targeted a police training centre attached to the headquarters.