North Korea reportedly attempted to conduct a missile launch on Wednesday.
An envoy said the country would pursue "acceleration" of its nuclear and missile programs.
The White House is weighing wide-ranging sanctions against North Korea, according to Reuters.
North Korea risks being cut off from the global financial system via sanctions, a senior U.S. official said Monday.
China's state-run media cheered Secretary of State Rex Tillerson's weekend visit to Beijing as a diplomatic win for the home team. NBC News reports.
North Korea's threat cannot be resolved until there's a change in direction or a regime change, former US Defense Secretary William Cohen says.
William Cohen, former U.S. defense secretary, says President Trump faces a steep learning curve but has made good choices for his national security team.
William Cohen, former U.S. defense secretary, says Kim Jong-un remains set on developing nuclear missiles.
President Trump needs "creative diplomacy" to gain Beijing's help on North Korea, warned former U.S. ambassador to China Max Baucus.
Max Baucus, former U.S. ambassador to China, says the options have been on the table for a long time but it remains to be seen what will be done.
The U.S. is looking forward to the first meeting between President Donald Trump and his Chinese counterpart, Xi Jinping, Rex Tillerson said.
Harry J. Kazianis of the Center for the National Interest says to expect more rigorous missile testing from North Korea in the months ahead.
North Korea has conducted a ground test of a new type of high-thrust rocket engine.
U.S. Secretary of State Rex Tillerson says military action is on the table when it comes to deterring North Korea's nuclear threat. CNBC's 'Squawk on the Street' crew discusses the news.
Several countries are developing weapons based on nanotechnology that could unleash attacks with mini-nukes and insect-like lethal bots.
Rex Tillerson says the U.S. policy of "strategic patience" with North Korea is over.
"We are exploring a new range of security and diplomatic measures. All options are on the table."
Kishore Mahbubani at the National University of Singapore say the same old diplomatic solutions won't work for North Korea.
Jeff Kingston at Temple University Japan says the U.S. approach to belligerent North Korea will reveal whether "amateurs" can offer new solutions in diplomacy.
David Adelman of Reed Smith says U.S. Secretary of State Rex Tillerson will use his first trip to Asia to assure allies in Northeast Asia.