He said that its participation was required as the country has a role to play in its war-torn neighbour’s peace and stability.
Talking to media he said Pakistan not attending the crucial meet was its sovereign decision.
“Pakistan is one of the key countries in the region who can help peace and stability in Afghanistan and thus it would have been much better if Pakistan was present in the conference. I feel it regrettable that Pakistan has decided not to come,” he said in a statement.
Ban added that absence of the Pakistan delegation does not in turn mean that the country will not cooperate in ensuring peace and stability in the South Asian region.
“I am told by German Foreign Minister Guido Westerwelle that he had been informed by the Pakistani government that even though they may not be here, the Pakistani Government is committed to fully cooperate with the members of the international community and particularly the Afghan government to work together and to promote peace and security in the region.”
“I believe that Pakistan is committed to work together with the Afghan people and also to promote peace and security in the region and this is mutual interest and you should also have closer cooperation with many Central Asian countries,” he said.
The UN chief said he has been emphasising, in his dialogue with leaders from Pakistan and Afghanistan over the years, that both countries should “maintain the neighbourly relationship and closely coordinate and help each other to promote peace and security.”