Asked about whether the latest round of sanctions against Pyongyang will have the desired effect, given North Korea's race toward nuclear development and the time it takes for sanctions to kick in, Tillerson said that "when do these actually have a practical bite on their revenues. the more important element of that is just the message that this sends to North Korea of how unacceptable the entire global community finds what they're doing to be".
South Korea's foreign minister joined her counterparts from the US and Japan for a meeting in the Philippines in which Tillerson touted efforts to persuade nations to stop using North Korean labor.
"North Korea should realize if it doesn't stop its nuclear, missile provocations it will face even stronger pressure and sanctions", Defense Ministry spokesman Moon Sang-gyun told a regular news briefing.
The United States is responsible for influencing the decision at the Security Council to adopt Resolution 2371, the North Korean council said Monday.
He also expects to have discussions on additional topics concerning "threats to all of us and our common response to that" as well as "opportunities that exist among all of those to strengthen relationships".
Apart from the North Korea issue, the ministers touched on the regional terrorist threat, climate change and diplomatic wrangling on overlapping claims in the South China Sea during Saturday's two-and-a-half hour closed-door meeting, Bolivar said.
Ri had been scheduled to hold a news conference in Manila, Philippines, where Asian diplomats are gathered for a meeting of the Association of Southeast Asian Nations.
Kang Kyung-hwa, South Korea's first woman foreign minister, was the target of North Korea condemnations Monday.
The UN Security Council on Saturday unanimously passed new sanctions that could strip Kim Jong-un's regime of $3 billion in export revenue annually.
Pyongyang props up its nuclear program with income from the sale of various illegal goods, including weaponry, synthetic drugs, counterfeit currency and nuclear technology.
"There is no bigger mistake than the United States believing that its land is safe across the ocean", a statement from the official North Korean state news agency declared.
Tillerson reportedly said that through dialogue, North Korea would ultimately "feel secure and prosper economically".
"The basic political dynamics remain: China does not want North Korea to crumble, and China craves geopolitical stability above everything else", he said.
The stalled six-party talks involved South Korea, North Korea, the United States, China, Russia and Japan, all of which are represented at the Manila meeting.
"We'll know it when we see it", Tillerson said. They said they were committed to providing help in implementing them.
Speaking in NY after the Security Council adopted the new resolution Saturday, U.S. Ambassador to the U.N. Nikki Haley stressed that the joint drills would not stop.
Earlier, U.S. Secretary of State Rex Tillerson said new United Nations sanctions targeting North Korea are a "very good outcome".
Even as they celebrate a diplomatic victory in persuading China and Russian Federation to sign on to cutting new sanctions, the US and other countries are deeply concerned that failure to rigorously enforce them could significantly blunt their impact.