MANILA (AFP) - North Korea has appealed to South-east Asian countries for support in its row with the United States to prevent what it warned could be a "nuclear holocaust", according to a letter obtained by AFP.
In the letter to the Association of South-east Asian Nations' secretary general, North Korean Foreign Minister Ri Yong Ho warned the situation on the Korean Peninsula was "reaching the brink of war" because of Washington's actions.
He urged the Asean chief to inform the 10-nation organisation's foreign ministers "about the grave situation" on the peninsula "and give them a proper proposal", while criticising at length US-South Korean military exercises.
Tensions have soared in the region in recent weeks in the wake of a series of North Korean missile tests and tough rhetoric from Washington on the isolated nation's rogue weapons programme.
A copy of the North's letter, was obtained by AFP. It was dated dated March 23, ahead of the regional bloc's summit this week in Manila, where delegates are expected to discuss the situation on the peninsula.
"I express my expectations that Asean which attaches great importance to the regional peace and stability will make an issue of the US-South Korean joint military exercises at Asean conferences from (a) fair position and play an active role in safeguarding the peace and safety of Korean Peninsula," the letter said.
A draft of Asean's end-of-summit chairman statement obtained this week by AFP had a portion on the Korean Peninsula still blank, meaning the leaders had yet to agree on what to say on the issue.
North Korea is known to have close ties with some Asean members, including Cambodia and Laos.
Pyongyang's diplomatic ties with Malaysia were disrupted after the assassination in Kuala Lumpur in February of Kim Jong Nam, the estranged half-brother of North Korean leader Kim Jong Un.
South Korea has blamed Pyongyang for the killing, accusing its agents of using a banned nerve agent.
Ri wrote in the letter that the annual US-South Korea military exercises justified Pyongyang's decision to develop its own nuclear weapons.
"It is a fact clear to everyone that when they deploy the means of nuclear strike that can drive the Korean Peninsula into a nuclear holocaust in just seconds... the nature of such exercises can in no way be defensive," the letter said.
Washington has deployed an aircraft carrier strike group to the Korean peninsula amid signs the North could be preparing for a sixth nuclear test.
Admiral Harry Harris, who heads the US Pacific Command, said in Washington this week the US Carl Vinson strike group was in the Philippine Sea just east of Okinawa, "in striking range and power projection range of North Korea if called upon to do that."