Mr. Moon's comments came hours after the South, which hosts 28,500 United States troops, said it wanted to reopen a channel of dialogue with North Korea as the South Korean president seeks a two-track policy involving sanctions and dialogue to try to rein in its neighbor.
In a statement issued on Thursday, the Department of Foreign Affairs said the Philippine government continues to call on North Korea to "cease these acts of provocation, a clear breach of the UN Security Council resolutions, and constitutes a serious challenge to regional peace and stability in the Korean Peninsula and the worldwide community". "The Unification Ministry has considered options on this internally but nothing has been decided yet".
Lee added authorities from the South go to the Panmunjom communications office at the border between the two Korea s every day and make daily checks for possible responses from North Korea. It has also regularly threatened South Korea and Japan of strikes for colluding with the United States.
"From the beginning of the Kim Jong Un regime, since last one year alone, they have launched more than 20 ballistic missiles which is more than the total number of ballistic missiles launched during the Kim Jong il regime", Abe told CNBC in an interview.
Last week, Moon Jae-in won the presidential election by campaigning on a more moderate approach to the North.
"The actions of North Korea are unacceptable to the world, really", the admiral said during discussions with Kishida.
The issue of THAAD deployment on the peninsula was not raised during Hong's discussions with Trump, but the former South Korean diplomat said the USA missile defense system was addressed during a separate meeting with Gen. McMaster.
North Korea test-launched a missile on Sunday that many experts believe could be its most advanced yet, flying higher and longer than any previous missile.
U.S. President Donald Trump gestures as he walks on the South Lawn of the White House upon his return to Washington, U.S., May 17, 2017.
Abe made the remarks during a meeting with Moon Hee-sang, a special envoy of South Korean President Moon Jae-in, who was sent to deliver his letter to Abe and discuss summit talks. South Korean companies, from vehicle makers to retailers and cosmetics firms, have been hit in China by a nationalist backlash over Seoul's decision to deploy the missile system.
After the missile launch on Sunday, the United States, Japan and South Korea called a UN Security Council meeting to press North Korea to change course and dismantle its missile and nuclear programmes.
"We are willing to talk, but not until we see a total stop of the nuclear process and of any test there", the USA envoy, Nikki Haley, told reporters ahead of a closed-door Security Council meeting.
Speaking to reporters ahead of an emergency meeting of the UN Security Council, Haley vowed to "call out" countries that support Pyongyang and its nuclear ambitions.