Tensions Grow over North Korea

Nation declares "state of war" with South Korea

North Korea says it has entered a "state of war" with South Korea and has warned any provocation by Seoul and Washington will escalate into a nuclear war. 

In a statement carried by the North's official KCNA news agency Saturday, Pyongyang said all issues between the two Koreas will be handled according to "wartime regulations."

In response, South Korea's defense ministry urged its northern neighbor to stop making threats. The ministry also said the South's forces will completely punish the North if there is a provocation.