Since early 1980s, Pakistan's nuclear proliferation activities have not been without controversy.

This declaration must include all nuclear weapons, programs, materials and facilities, including clarification of any proliferation activities.

The U.S. continues to see proliferation activity by some Chinese entities, however, which has resulted in sanctions against these companies.

"We are putting in place the ability to detect, disrupt and deter North Korean proliferation activities," he said.

Under the amendment, the president would have been required to conduct an annual review of China's proliferation activities.

"It's completely impossible for there to have been any proliferation activities without A. Q. Khan's knowledge," the diplomat said.

Any financial aid and educational training that might facilitate North Korea's nuclear program and proliferation activities were also forbidden.

"This is the time to make it clear that there are many ways to stop proliferation activities."

It shows the international community is united against North Korea's continued proliferation activities and attempts to disrupt regional security.

"We are not involved in any proliferation activity," said the Pakistani official, who spoke on condition of anonymity.