According to this article, North Korea said it would invite UN atomic inspectors and discuss shutting down its nuclear reactor as soon as the banking dispute was resolved during the 4-day aid talks between South Korea and North Korea.
The meetings began on Wednesday, and will end on Saturday. On Thursday, North Korea's chief delegate promptly walked out of the meeting when the South raised the nuclear issue at the talks' opening session. It seems that walkout has become the North's strategy to resist other nations' pressure on shutting down the reactor. Very strange. What if South Korea loses patience on North Korea, and refuses to provide aids? Is North Korea going to blow up the atomic bomb? I don't think so.
But the two sides resumed talks on Friday.