N.Korea voids pacts with South as sanctions toughened
North Korea responded to new UN sanctions on Friday with fresh threats of nuclear war, the scrapping of peace pacts with South Korea and the severing of a hotline with Seoul. - The latest measures announced by Pyongyang ramped up tensions on the Korean peninsula that have surged since the North staged a third nuclear test last month. On Thursday, the country had threatened a pre-emptive nuclear strike against the United States and South Korea.
BBC: North Korea ends peace pacts with South
New York Times: Two Koreas Engage in Hostile Exchanges After Sanctions Vote