(Reuters) - United Nations Secretary-General Antonio Guterres condemned North Korea s nuclear test on Sunday as  profoundly destabilizing for regional security  and called on the country s leadership to cease such acts, his spokesman said in a statement.  This act is yet another serious breach of the DPRK s international obligations and undermines international non-proliferation and disarmament efforts. This act is also profoundly destabilizing for regional security,  U.N. spokesman Stephane Dujarric said.  North Korea is also known as the DPRK. 
U.N. chief condemns N.Korea nuclear test, says  it is 'profoundly destabilizing'