United Nations Secretary-General, Antonio Guterres, has condemned the underground nuclear test by the Democratic People's Republic of Korea, as "yet another serious breach of the country's international obligations".

According to a statement issued by a UN spokesperson, the Secretary-General also said that DPRK's action undermined international non-proliferation and disarmament efforts and is also profoundly destabilizing for regional security.

"The Secretary-General reiterates his call on the DPRK leadership to cease such acts and to comply fully with its international obligations under relevant Security Council resolutions," the statement said, noting that Mr. Guterres remains in contact with all parties concerned.