The top U.S. diplomat for East Asia on Friday said it's not too late for North Korea to return to international nuclear disarmament talks and urged the country to fulfill its obligations to end its nuclear programs, AP reported. Kurt Campbell, the assistant secretary of state for East Asia and Pacific affairs, also said other members of the international community must ensure that U.N. Security Council sanctions on the North are enacted while they seek ways to resume dialogue. The six-party talks came to a halt in April when North Korea withdrew to protest a U.N. statement condemning what Pyongyang described as a satellite launch. Japan, the U.S. and their allies said the launch was a long-range missile test. North Korea conducted its second underground nuclear test in May, drawing further condemnation and sanctions. Kim Yong Nam, the North's No. 2 official, this week said Pyongyang was not ready to resume nuclear disarmament talks because the U.S. and its allies do not respect the country's sovereignty. The talks involve the two Koreas, the U.S., Japan, China and Russia.