North Korea has warned fishermen and boat captains to stay away from the country's east coast, Japan's coast guard said Monday, in another sign the regime is planning to fire medium-range missiles in the area.
Pyongyang also threatened Monday to retaliate with a "super hard-line" response if sanctions were imposed.
North Korea's Rodong Sinmun newspaper said Pyongyang "has made clear many times that we will consider any sanction a declaration of war and will take due corresponding self-defense measures." The commentary carried by the official Korean Central News Agency did not elaborate.
The UN Security Council has been discussing imposing sanctions against the North in response to its recent nuclear test, while Washington considers introducing its own financial sanctions.