British Prime Minister Mr Tony Blair has told Afghan tribesmen there is a $25 million reward for turning in Osama bin Laden.
Speaking on BBC Radio's World Service, he said: "There are people in Afghanistan who could help us. There is a very substantial reward, worth millions of dollars for his capture, for him being yielded up".
He said on the Pashtun-language BBC programme - listened to by millions among Afghanistan's largest ethnic group - that Afghans should unite to throw off the Taliban rule.
"It is important to realise we want Osama bin Lden and his al-Qaeda network. If people want to gain stability for Afghanistan, it's important this terrorist network is shut down," he said.
He called on ordinary Afghans to rise up against the Taliban and said the Allies would hunt down bin Laden and al-Qaeda, "for as long as it takes" to find them.
PA