President Vladimir Putin said that Russia is ready to use nuclear weapons if there is a threat to its statehood, sovereignty or independence, voicing hope that the U.S. would refrain from actions that could trigger a nuclear conflict.

Putin's statement was another blunt warning to the West ahead of a presidential vote this week in which he's all but certain to win another six-year term.

The French navy frigate, bristling with weaponry and powering through frigid Norwegian seas not so far from Russia, awoke at 7:30 a.m. sharp to what, in the circumstances, was a surreal sound.

The 1967 " Summer of Love " hippie anthem "San Francisco (Be Sure to Wear Flowers in Your Hair)" was playing over the warship's public address system. Singer Scott McKenzie's voice reverberated through the passageways starting to bustle with sailors clutching coffee mugs: "All across the nation, such a strange vibration, people in motion."

Ukraine launched a wave of long-range drones against targets deep inside Russia on Tuesday, Russian officials said, hitting at least two oil facilities in the attack on eight regions of Russia in the latest display of Kyiv's expanding drone capacity.

Also Tuesday, soldiers who Kyiv officials say are Russian volunteers fighting for Ukraine reported to have crossed the border into Russia, as they have several times during the war. Russia said it had beaten back attempted incursions, but it wasn't possible to verify either side's claims and the reports of border fighting were murky.

China, Iran and Russia have begun a joint naval drill in the Gulf of Oman, a crucial waterway near the mouth of the Persian Gulf, officials said Tuesday.

Footage aired by Chinese state television and a video released by the Russian navy showed the ongoing drill, known as "Marine Security Belt 2024."

Moscow on Tuesday said its army had beaten back Ukrainian forces trying to claim territory in two Russian border regions, deploying warplanes, missiles and artillery to fend off the assaults.

The defence ministry said in a statement that Russian forces "thwarted an attempt by the Kyiv regime to make a breakthrough into the border territory of the Russian Federation in the Belgorod and Kursk regions".

Thousands of Russians braved the cold for hours earlier this month to honor the opposition politician Alexei Navalny after his funeral. They chanted anti-war slogans and covered his gravesite with so many flowers that it disappeared from view.

It was one of the largest displays of defiance against President Vladimir Putin since he invaded Ukraine, and happened just weeks before an election he is all but assured to win. But Russians watching television saw none of it.

Japan marked the 13th anniversary of the massive earthquake and tsunami that triggered a nuclear meltdown and left large parts of Fukushima prefecture uninhabitable on Monday with a minute of silence and memorial events, where officials pledged continued support for rebuilding.

A 9.0 magnitude quake and tsunami ravaged parts of Japan's northeastern coast on March 11, 2011, killing about 20,000 people.

Portugal's political future is hanging in the balance after a general election Sunday, with two moderate mainstream parties closely contesting the race and set to wait weeks for a decision on the winner after an unprecedented surge in support for a populist party that finished third.

The center-right Social Democrat-led Democratic Alliance won 79 seats in the 230-seat National Assembly, Portugal's Parliament, after all votes cast in Portugal were counted.

Sweden's national flag was raised at NATO headquarters on Monday, cementing the Nordic country's place as the 32nd member of the alliance two years after Russia's invasion of Ukraine persuaded its reluctant public to seek safety under NATO's security umbrella.

Under a steady rain, Swedish Prime Minister Ulf Kristersson and NATO Secretary-General Jens Stoltenberg looked on as two soldiers raised the blue banner emblazoned with a yellow cross among the official circle of national flags at the headquarters in Brussels, Belgium.

China's national congress was concluding its annual session Monday with the usual show of near-unanimous support for plans designed to carry out ruling Communist Party leader Xi Jinping's vision for the nation.

The weeklong event, replete with meetings carefully scripted to allow no surprises, has highlighted how China's politics have become ever more calibrated to elevate Xi.