British Prime Minister Gordon Brown on Sunday stepped up pressure on Pakistan to "take out" the world's most wanted terrorist Osama bin Laden and 'break' his Al Qaeda's network.
Brown told the BBC that eight years after the 2001 attacks on the US, nobody had been able "to spot or detain or get close to" the Al Qaeda leader.
Pakistan's security services must join the "major effort" to isolate the terrorist group, he warned.
He said more progress was needed "in taking out" Bin Laden and his number two Ayman Zawahiri.
Brown has spoken broadly the same points to BBC and SKY News during the Commonwealth summit on Sunday.
He told Sky News that "We believe Osama bin Laden is in Pakistan...we will want to see more evidence of Pakistan action, not just troops in south Waziristan, but the whole of government machinery".
Pakistan Prime Minister Yousuf Raza Gilani is due to meet Brown in 10, Downing Street next week.
Brown said progress had been made against the Taliban in south Waziristan by Pakistan's government, but added: "We've got to ask ourselves why, eight years after September the 11th, nobody has been able to spot or detain or get close to Osama bin Laden, nobody's been able to get close to (Ayman) Zawahiri, the number two in Al Qaeda".Brown said: "And we've got to ask the Pakistan authorities, security services, army and politicians to join us in the major effort that the world is committing resources to, and that is not only to isolate Al Qaeda, but to break them in Pakistan."