ISLAMABAD, Feb 28: Pakistan has not received any fresh evidence from any credible source about a leakage from its nuclear programme to require further investigation.

Foreign Office spokesman Masood A. Khan said this at his weekly news briefing on Monday when his attention was drawn to an American newspaper report alleging transfer of nuclear technology/material in Dubai by some associates of Dr A.Q. Khan in 1987.

The spokesman said that Pakistan had completed intensive investigations against Dr Khan covering the period of 1980 to 1990s and findings had been 'transparently' shared with the people of Pakistan, the concerned world powers and the International Atomic Energy Agency.

He denied that any new dates had been proposed for the Dhaka Saarc summit. He said that the South Asian Association for Regional Cooperation was still in its nascent stage of evolution and, therefore, the time was not yet ripe for inclusion of any new members in it.

Saarc, the spokesman said, was still trying to consolidate its structure and build itself into a viable and vibrant regional institution. He, however, expressed Pakistan's deep appreciation of the interest shown by Afghanistan, China, Iran and other countries to associate with Saarc. He hoped that the association would soon assume a viable stature and attain capability to welcome more members into its fold.