North Korea threatens war with South

North Korea threatened to attack rival South Korea if Seoul joined a new round of tightened UN sanctions, as Washington unveiled more of its own economic restrictions following Pyongyang's rocket launch last month.
In a third straight day of fiery rhetoric, the North directed its verbal onslaught at its neighbor on Friday, saying: "'Sanctions' mean a war and a declaration of war against us."
The reclusive North has this week declared a boycott of all dialogue aimed at ending its nuclear program and vowed to conduct more rocket and nuclear tests after the UN Security Council censured it for a December long-range missile launch.
North Korea yesterday renewed its threat to carry out a third nuclear test, saying it was the "demand of the people."
"A nuclear test is the demand of the people," said the Rodong Sinmun, the official daily newspaper of the ruling communist party in a signed commentary titled "We have no other option".
"The people's demand is that we must do something even greater than a nuclear test. The United Nations Security Council has left us with no other options. We have no other ways but to push forward to the final showdown", it said.
The UN Security Council unanimously condemned North Korea's December rocket launch on Tuesday and expanded existing UN sanctions.