President Moon Jae-in was immediately briefed on North Korea's missile launches while South Korea's National Security Council has also convened to discuss the latest developments.
Meanwhile, earlier this afternoon, South Korea successfully carried out an underwater launch of a missile from a submarine becoming the world's seventh country to possess a homegrown SLBM.
For details, we have our presidential correspondent Kim Min-ji on the line.
Min-ji fill us in.
Ji-yeon, shortly after North Korea's missile launches, the Blue House said that it plans to convene a meeting of its National Security Council to discuss the developments.
We're still waiting for details, but the members are expected to analyze relevant information, and discuss response measures.
Usually the meeting is chaired by National Security Advisor Suh Hoon.
The Blue House added that President Moon Jae-in was also immediately briefed on the situation.
Min-ji, the North's provocation come just hours before South Korea carried out an underwater launch from a submarine.
Tell us more.
Right, the submarine-launched ballistic missile was fired from a 3,ton class submarine, the 'Dosan Ahn Chang-do,' and accurately hit its target after flying a planned distance.
The launch was observed by President Moon.
South Korea is now the seventh country in the world to possess an SLBM along with the U.S., Russia, China, Britain, France and India.
North Korea has said it's test-fired an SLBM, but officials here say it's unclear whether the missile was fired from an actual submarine.
The Blue House says the latest development will allow South Korea to secure deterrence against threats from all directions and is expected to contribute to a self-reliant national defense.
Moon was quoted as saying that South Korea's SLBM launch was in line with the country's plans to boost its missile capacity, but that it can also be a deterrent to North Korea's provocations.
Moon added that today showed that South Korea can respond to the North's provocations at any time.
That's all I have at this hour. Back to you.