Unilateral acts like the killing of Osama bin Laden by US commandos in a sneak raid were not acceptable, Prime Minister Yousaf Raza Gilani has said.

Sri Lanka is to hold an international seminar starting on Tuesday to share lessons on its bloody defeat of Tamil rebels, but major nations have declined to send delegations amid war crime allegations.

A team of officials from US spy agency CIA flew to Abbottabad near the Pakistani capital and searched the mansion where Al Qaeda chief Osama bin Laden was killed in a secret mission earlier this month, a media report said on Saturday.

A CIA forensic team has carried out an extensive search of slain Al Qaeda chief Osama bin Laden's Abbottabad hideout hunting for concealed chambers where he might have stashed his terror blueprints.

The US has drawn up a list of five terrorists it expects Pakistan to provide intelligence about immediately and possibly target in joint operations, according to a media report on Saturday.

A bomb blast at a busy marketplace in a restive tribal area in Northwest Pakistan on Saturday killed at least four people and wounded 15 others, officials said.

Pakistan was the "only" Muslim state to have a nuclear arsenal and the Taliban have no plans to destroy the weapons, the outfit's spokesman has said.

At least eight people were killed and 12 injured in a blast on Saturday morning in Pakistan's Northwest tribal region bordering Afghanistan, a media report said.

US secretary of state Hillary Clinton on Friday arrived in Pakistan on a surprise visit amid severe strains in bilateral ties following the American raid that killed Al Qaeda chief Osama bin Laden earlier in May.

Bangladesh has told a UN forum that it has “no indigenous population”. Dhaka has also objected to a study on the status of implementation of an accord the government signed in 1997 with the Buddhist tribals of the Chittagong Hill Tracts (CHT).