In Pakistan, at least sixteen people have been killed in a US drone attack in the South Waziristan tribal region. Pakistani officials say the strike could have killed the top Taliban leader in Pakistan, Hakimullah Mehsud. The Taliban says Mehsud left before the attack and escaped harm. The attack came amidst a visit to Pakistan by US special envoy Richard Holbrooke. On Thursday, Pakistani Prime Minister Yousaf Raza Gilani criticized the drone strikes, saying they undermine Pakistani sovereignty.