Seoul calls for halt to missile launches

South Korean President Moon Jae-in delivers a speech during a ceremony to mark the 74th anniversary of Korea's liberation from Japanese colonial rule. Photo / AP

South Korea's military said North Korea fired two projectiles into the sea yesterday to extend a recent streak of weapons tests believed to be aimed at pressuring Washington and Seoul over slow nuclear diplomacy.

South Korea's Joint Chiefs of Staff said the projectiles launched from the North's eastern coast flew about 230km on an apogee of 30km before landing in waters between the Korean Peninsula and Japan.

The Joints Chiefs of Staff said the US and South Korean militaries were analysing the launches but didn't immediately say whether the weapons were ballistic missiles or rocket artillery.

It was North Korea's sixth round of weapons launches since late July when it began stepping up its weapons demonstrations while expressing frustration over stalemated nuclear negotiations with the United States and continuance of US-South Korea joint military drills that the North sees as an invasion rehearsal.

South Korea's presidential office said national security adviser Chung Eui-yong was presiding over an emergency National Security Council meeting about the launches and President Moon Jae In was being briefed on the developments. The Blue House called for the North to stop launches that risk raising military tensions on the peninsula.

Japan's Defence Ministry said the North Korean projectiles did not reach the country's territorial waters or its exclusive economic zone.

The White House said it was aware of reports of the launches and was consulting with Seoul and Tokyo.

The weapons the North tested in recent weeks included a new rocket artillery system and what security analysts say are two new short-range mobile ballistic missile systems that would potentially expand the North's ability to strike targets throughout South Korea, including US bases there. Experts say President Donald Trump's downplaying of the North's launches allowed the country more room to intensify its testing activity while it seeks to build leverage ahead of a possible resumption of negotiations, which could happen sometime after the end of the allied drills later this month.

The North has ignored South Korean calls for dialogue recently and is seen as dialling up pressure on Seoul to coax major concessions from Washington on its behalf.

The Joint Chiefs of Staff alerted reporters to the launches hours after the North issued a statement berating South Korea, saying it's "senseless" for Seoul to hope for a resumption of inter-Korean dialogue while it continues its military exercises with the US. The statement by the North's Committee for the Peaceful Reunification of the Country came a day after Moon said in a speech that the momentum for dialogue remains alive despite the series of "worrying actions taken by North Korea recently".

The North had recently said it plans to talk only with Washington and not Seoul, and that inter-Korean dialogue wouldn't resume unless South offers a "plausible excuse" on why it keeps hosting military drills with the US.

- AP