SEOUL, Nov 21 (AFP) - North Korea's foreign minister on Monday accused U.N. Secretary General Antonio Guterres of siding with the United States and failing to maintain impartiality and objectivity.

"Recently I have often taken the UN secretary-general for a member of the U.S. White House or its State Department," Foreign Minister Choe Son Hui said in a statement carried by state media defending the nuclear-armed North's right to develop weapons for self defence.