Pakistan insisted on Saturday that case against nuclear scientist Dr Abdul Qadeer Khan has been closed and all important information had been gathered and shared with the International Atomic Energy Commission and the United States.
A leading US nuclear expert insisted in his testimony before Congress on Thursday that the case against Dr AQ Khan was "far from closed" and many questions, especially about Iran, remain unanswered.
"We have completed our investigations and have shared with the IAEA and United States. We do not have no any new information to share with the United States," Acting Foreign Office spokesman Suhail Mehmood told NNI when his comments were sought about the American nuclear expert's remarks.
Reports suggest that the American nuclear expert has asked President Bush to put pressure on President Musharraf to reopen Dr Khan's case.
"Dr Abdul Qadeer Khan case has been closed on our part," Suhail Mehmood said. "If the United States has any new information they should share with us. We are ready are to cooperate," the spokesman said.
David Albright, president of the Institute for Science and International Security (ISIS) told the Congress that the information supplied by the Pakistan government to the IAEA and other governments "appears so far to be incomplete."
He said the Pakistan government needed to provide "more assistance" to investigators, including the IAEA and affected governments "direct access to question Khan and his associates verbally."