In a thinly veiled threat to strike the United States, the North's National Defence Commission (NDC), chaired by leader Kim Jong-Un, said the US government must withdraw its policy of hostility against the North if it wants peace on both the Korean peninsula and the "US mainland".
"(The United States) must bear it in mind that reckless provocative acts would meet our retaliatory strikes and lead to an all-out war of justice for a final showdown with the United States," a spokesman of the NDC was quoted as saying in a statement carried by Pyongyang's Korean Central News Agency.
The comments come after a two-day joint naval drill between Japan, South Korea and the US, which included an American nuclear aircraft carrier, sparked a series of angry responses and threats from Pyongyang.
Yesterday, the North slammed the naval drill as a "serious military provocation" and vowed to "bury in the sea" the American carrier taking part in the exercise.
More From This Section
The latest bellicose statement from the NDC demanded that the US lift sanctions against the North, stop the "constant nuclear blackmails" and various war drills.
"The denuclearisation of the Korean peninsula is an inalterable policy goal of the DPRK government," it said, but added that getting rid of such weapons should also include a total removal of US nuclear threats against the North.
The US and South Korea have long demanded that Pyongyang show tangible commitment to ending its nuclear weapons programme before the six-party talks, which have been stalled for several years, can resume.
Later today, South Korea's President Park Geun-Hye warned the North was a "serious threat" to the region.
"We cannot accept North Korea as a nuclear state," she said.