North Korea on Tuesday vowed to cut all ties with South Korea, saying there will be no dialogue or contacts between the governments while President Lee Myung-bak is in office.
A spokesman for the North's Committee for the Peaceful Reunification of the Fatherland castigated Lee's nationally televised speech on Monday announcing sanctions against the North, calling the sanctions "an official declaration" that the South "would risk going to war."
The spokesman said Pyongyang will "completely sever ties with the South, scrap the nonaggression treaty and cancel all cooperative projects."
Meanwhile, China has urged North Korea to restrain itself over sanctions from South Korea, a senior Chinese official has told South Korean government officials. Beijing reminded Pyongyang that "peace and stability" are vital for the Korean Peninsula after an investigation implicated the North in the sinking of the South Korean Navy corvette Cheonan.