Hillary Clinton has said she believes Osama bin Laden is still hidden inside Pakistan.
The American Secretary of State said she believed the fugitive head of the al Qaeda terrorist network was at large nearly nine years after United States forces helped topple his Taliban hosts in neighbouring Afghanistan.
Speaking before heading to the Kabul International conference, she said: "I believe (bin Laden) is here in Pakistan and it would be very helpful if we could take them (al-Qaeda leaders)." Leon Panetta, head of the CIA, last month said bin Laden remained in "very deep hiding".
The American spy service has maintained bin Laden is alive despite rumours of poor health and a lack of verified sightings or appearances in recent years. Several audio propaganda messages have been released purporting to be from him.
Hamid Karzai, speaking at the conference, said he believed the Taliban leader and founder Mullah Mohammad Omar was also across the border.
He said: "We have known all along that some of the very, very senior leadership of the Taliban were in Pakistan, this is not news to us." He told the conference the Taliban was "a vicious common enemy that violates every Islamic and international norm to break our unity of effort".