Kai Eide, a Norwegian diplomat who just stepped down from the UN post in the Afghan capital of Kabul, told the BBC that discussions with senior Taleban members began a year ago and included face-to-face conversations in Dubai and elsewhere. It was the first time that Eide publicly confirmed that his contacts with senior Taleban members had begun a year ago.

"The first contact was probably last spring, then of course you moved into the (Afghan presidential) election process where there was a lull in activity," Eide told the BBC in a report issued on Friday. "Then, communication picked up when the election process was over, and it continued to pick up until a certain moment a few weeks ago."

Pakistan has denied that it moved against the Taleban to stop or exert control of any talks that could determine the future of neighboring Afghanistan.

Eide, who was interviewed at his home outside the Norwegian capital of Oslo, said there were many channels of communication with the Taleban, including those involving senior representatives of Afghan President Hamid Karzai.

Last month's detention of Mullah Abdul Ghani Baradar — second in the Taleban only to Mullah Mohammed Omar — infuriated Karzai, one of Karzai's advisers told The Associated Press. Besides the ongoing talks, the adviser, who spoke on condition of anonymity to discuss the sensitive topic, said Baradar had "given a green light" to participating in a three-day peace "jirga" or conference that Karzai is hosting next month.

Eide described the contacts with the Taleban as being "in the early stages."

"We met senior figures in the Taleban leadership and we also met people who have the authority of the Quetta Shura to engage in that kind of discussion," he said, referring to the ruling council of the group named after Quetta, Pakistan.

He said he believed that the talks could not have taken place without the blessing of Omar, the Taleban leader. "I find it unthinkable that such contact would take place without his knowledge and also without his acceptance," Eide said.

Eide predicted it would take weeks, months or even longer to establish confidence on both sides to move forward and establish the "red lines" for any negotiations, which Eide said would have to be led by the Afghans.

"The effect of (the arrests), in total, certainly, was negative on our possibilities to continue the political process that we saw as so necessary at that particular juncture," Eide said. "The Pakistanis did not play the role that they should have played. ... They must have known who they were, what kind of role they were playing, and you see the result today."