Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. North Korea Cuts Ties With South As Tensions Soar VOA News 25 May 2010 South Korean activists and North Korean defectors shout slogans during a rally against the North near the National Assembly in Seoul, South Korea, 25 May 2010 Photo: AP South Korean activists and North Korean defectors shout slogans during a rally against the North near the National Assembly in Seoul, South Korea, 25 May 2010 North Korea says it is cutting all relations with South Korea as tensions continue to rise over the deadly sinking of a South Korean warship in March. North Korea's state-run KCNA news agency published a statement Tuesday from the country's national reunification committee announcing the termination of relations with the South. North Korea says it will have no contact with South Korean authorities while South Korean President Lee Myung-bak remains in office. It also says all South Koreans working at an inter-Korean industrial complex in the North Korean border town of Kaesong will be expelled. Other measures announced by Pyongyang include banning South Korean ships and airliners from passing through its territory and a resumption of psychological warfare against the South. Earlier, North Korea's military accused the South Korean navy of making dozens of intrusions into its waters in the past 10 days and threatened military action in response to further violations. The head of a group of North Korean defectors based in Seoul says his contacts in the North have told him Pyongyang is preparing its military personnel for conflict. On Monday, South Korea announced sanctions against the North in retaliation for a torpedo attack that sank the South Korean warship, Cheonan, in March, killing 46 sailors. International investigators blame the attack on a North Korean submarine, a charge Pyongyang denies. Meanwhile, U.S. Secretary of State Hillary Clinton urged China Tuesday to support international action against North Korea in response to the sinking of the Cheonan. Clinton is headed to Seoul for talks on Wednesday. As she wrapped up two days of talks with Chinese officials in Beijing, Clinton said the United States and China have a "shared responsibility" to ensure peace and stability on the Korean peninsula. She said both nations will work on "effective and appropriate" measures in the coming days, without elaborating. Chinese State Counselor Dai Bingguo said ensuring peace and stability in the region is critical and urged all parties to act calmly and avoid escalating tensions. Some information for this report was provided by AP, AFP and Reuters. .