SEOUL, May 31 (Yonhap) -- North Korea "can't have" the status of a nation possessing nuclear weapons, South Korea said Thursday, responding to a report that North Korea recently revised its constitution to proclaim itself as a nuclear-weapon state.

An official Web site run by North Korea and monitored by Yonhap News Agency on Wednesday in Japan, carried the full text of the reclusive communist nation's revised constitution that included the term "a nuclear-armed state."

   "At first, nuclear-weapon state status is in line with the terms of the Nuclear Non-Proliferation Treaty (NPT), but North Korea itself has admitted that it is not a member of the NPT," foreign ministry spokesman Cho Byung-jae said.