PYONGYANG, Sept. 11 (INP) -- The Democratic People's Republic of Korea (DPRK) Monday warned that the United States would face a "series of action tougher than it has ever envisaged" if Washington pushes through a new UN resolution imposing extra sanctions on Pyongyang. "The sanctions and pressure racket of the United States to completely obliterate the DPRK's sovereignty and right to existence is reaching an extremely reckless phase," said the DPRK's Ministry of Foreign Affairs in a statement. INP/AH