Trump said on Twitter on Saturday North Korea's leaders "won't be around much longer" after a U.N. speech by the North's foreign minister.
US Air Force bombers escorted by fighter jets flew over waters east of North Korea on Saturday, the Pentagon said.
South Korea's weather agency said it believed it to be a natural earthquake.
China has limited refined oil product exports to North Korea, and banned textile imports, as part of UN economic sanctions on Pyongyang.
China wants Japan to move beyond tighter UN economic sanctions and press for talks with North Korea over its weapons program.
CNBC's Eamon Javers reports on the latest developments on the war of words between President Trump and North Korea's Kim Jong Un.
"If (China) follows through on what they did that could be a game changer," Art Cashin says.
U.S. stocks came off session lows Friday as health care stocks recovered most of their losses.
North Korea is threatening to detonate a hydrogen bomb over the Pacific Ocean after President Trump imposes tougher sanctions on the rogue nation, reports CNBC's Eamon Javers.
The war of words between the U.S. and North Korea escalated, with President Trump saying Kim Jong Un "will be tested like never before."
Mike Allen, Axios executive editor, provides insight into the escalating war of words between President Trump and North Korea's leader, Kim Jong-un.
CNBC's Eamon Javers reports North Korea's Kim Jong-un is firing back after President Trump imposes tougher sanctions on the country.
Just hours after the U.S. imposed the toughest sanctions yet on North Korea, the country's foreign minister threatens to detonate a hydrogen bomb over the Pacific Ocean.
The pound fell Friday after Moody's said it downgraded the United Kingdom's long-term issuer rating to AA2 from AA1.
Gold rebounded from a four-week low on Friday as investors digested the latest twist in tensions between the United States and North Korea.
South Korea's approval of an $8 million aid package for the North is likely to muddle international efforts to isolate the rogue nation.
Kim Jong Un chastised Donald Trump, calling the president's United Nations address "unprecedented rude nonsense."
North Korean dictator Kim Jong Un chastised Donald Trump, calling the president's United Nations address "unprecedented rude nonsense."
Treasury Secretary Steven Mnuchin said the sanctions were intended to strike at those who "enable this regime's economic activity.
Michael O'Hanlon, Brookings Institution, discusses President Trump's strategy on the growing threat from North Korea.