Pakistan has confirmed that Friday's missile attack in its border area was aimed at foreign militants invited to a dinner and at least four of them were killed. It was the first confirmation by Pakistan that the attack in the Bajaur region targeted members of al-Qaida and the Taleban. Bajaur's head of administration said Tuesday that up to 12 insurgents were invited to the dinner. Officials said four or five militants were killed in the attack, but their bodies were removed quickly by their companions. The statement also expressed regret that some local residents were among the 18 people killed. U.S. intelligence sources initially reported that al-Qaida's number two leader, Ayman al-Zawahiri, may have died in the attack, although Pakistani officials later said he did not go to the dinner. The missile strike was allegedly carried out by a C.I.A.-operated drone aircraft. Pakistani Prime Minister Shaukat Aziz has condemned the attack, saying that his country would not accept such actions by other countries on its territory.