Watch CBS News
"We're deeply concerned about the fact that Russia has taken over nuclear facilities in Ukraine," Secretary of State Antony Blinken said at the start of a U.N. conference.
Experts say Pyongyang will likely intensify its threats against the Washington and Seoul as the allies prepare to expand summertime military exercises.
Supreme leader Ayatollah Ali Khamenei told the visiting Russian autocrat that their two heavily sanctioned nations should maximize their "mutual cooperation."
But after Biden reaffirmed to Israel that the U.S. wouldn't let that happen, an advisor to the supreme leader says Tehran still hasn't "made a decision" to build one.
President Joe Biden's four-day trip to the Middle East comes to a close Saturday. Biden's main goal during his stay was to reaffirm U.S. engagement in the region. Ed O'Keefe has more.
Biden vows to stand against Iran's nuclear program; therapy dogs help Highland Park, Illinois after shooting.
Israel is the first stop on President Joe Biden's trip to the Middle East this week. The renewal of the Iran nuclear deal is part of his agenda while he is in the region. The president will also meet with the Saudi king and crown prince. CBS News senior White House and political correspondent Ed O'Keefe reports from Jerusalem.
U.S. warship fires warning flare to ward off Iranian Revolutionary Guard speedboat coming straight at it, as IAEA says Iran stepping up uranium enrichment yet again.
The U.N. atomic watchdog agency chief says Iran's removal of dozens of surveillance cameras will worsen "a very tense situation" amid efforts to revive the pact.
After five years without nuclear testing, U.S. officials are warning that North Korea could hold a test within the next week. CBS News senior foreign correspondent Elizabeth Palmer joins "CBS News Mornings" with more analysis.
America's top envoy in the nuclear standoff with the North has made it clear that Washington is taking Kim Jong Un's threats seriously, and is frustrated over China and Russia's stance.
Russian forces pounded railway facilities and other infrastructure early Sunday in Kyiv, which had previously seen weeks of eerie calm.
U.S. and allies will seek formal censure of Iran by the global nuclear watchdog, despite Iran's warning against doing so, as Iran's stockpile of enriched uranium grows.
Defense Ministry says the "accident" struck the Parchin military research center, where the global nuclear agency suspectes Iran once conducted explosives tests.
President Biden reaffirmed the U.S.-South Korea alliance as the two countries look to deter North Korean nuclear missile threats and dependence on Chinese manufacturing. Nancy Cordes has more.
As Biden arrived to tout deals for American jobs, North Korea was poised for a nuclear weapons test and China launched military exercises.
An analyst tells CBS News that Kim Jong Un's regime could be ready to resume nuclear testing by the end of the month after a 3-year pause.
As Finland and Sweden's leaders seek the reassurance of NATO defense, CBS News tours a nuclear bunker in Helsinki – part of the legacy of Russia's last invasion.
Kim Jong Un's latest apparent weapons test came a day after South Korea swore in its new leader, and as the Biden administration pushed for more sanctions at the U.N.
Yoon Suk-yeol was elected by voters fed up with his predecessor's moderate stance on the country's nuclear-armed neighbor. He says "the door to dialogue will remain open."
A recent CBS News poll suggests that nearly 70% of adults believe that Russia's invasion of Ukraine could lead to a nuclear war. Russian nuclear missile tests have sparked further concern across NATO nations. Ian Lee reports.
But there's no indication the Russian president is preparing for imminent use of nuclear weapons, William Burns said.
Kim Jong Un expressed "firm will" to continue developing his nuclear-armed military, North Korea's official news agency said.
Some fear that a nuclear war could be on the horizon due to Russia's invasion of Ukraine.
36 years after the Chernobyl disaster, Zelenskyy says Russia firing missiles over the nuclear plant has left him "speechless," as Moscow cuts the gas to 2 Ukrainian allies.
In an interview with CBS News' Norah O'Donnell on Monday, Iran's exiled Crown Prince Reza Pahlavi said, "We need action to be taken."
President Trump has been briefed on a wide array of military and covert tools that can be used against Iran that go well beyond conventional airstrikes, including cyber operations and psychological campaigns, Pentagon officials said.
President Trump's remarks about taking Greenland by military force have prompted bipartisan criticism from lawmakers who have said they do not support acquiring the Danish territory in such a way.
President Trump said Monday he's imposing 25% tariffs on all countries that do business with Iran, as the administration pressures the Iranian government amid anti-regime protests.
Lindsey Halligan's deputy in the U.S. attorney's office in the Eastern District of Virginia, Robert McBride, was fired after refusing to lead the prosecution of James Comey, a source said.
Sen. Elizabeth Warren, a progressive Democrat from Massachusetts, said she told President Trump Congress could cap credit card rates if he pushes for it.
Democratic Sen. Mark Kelly filed a lawsuit against Defense Secretary Pete Hegseth seeking to block the Pentagon's efforts to downgrade his retirement rank and pay.
The state of Minnesota, along with the cities of Minneapolis and St. Paul, are suing Department of Homeland Security Secretary Kristi Noem and other federal officials in an effort to stop the surge of federal law enforcement officials coming into the state.
Mexico has become a key fuel supplier to Cuba since Venezuelan leader Nicolás Maduro's capture by the U.S.