Ukraine has resumed its attacks on Russian oil refineries after a brief pause, Russia's deputy prime minister said Friday.

There was no immediate comment from Ukraine.

Dockworkers in Europe and beyond were staging strikes on Friday as part of an international campaign against arms shipments and to demand better working conditions, unions said.

Unions in France, Italy, Greece, Spain, Turkey and Morocco issued a joint call to demand an end to the wars in the Middle East, including the war in Gaza, and "an end to the militarization of ports."

Early voting is continuing to significantly outpace the last midterm election, with millions more Americans casting ballots in advance and particularly sharp increases in states hosting competitive Senate races, according to an Associated Press analysis of voting data five days before Election Day.

The surge is especially pronounced in Texas, where voters are deciding closely watched Senate, House and governor's races. More than 6.3 million Texans had voted early as of Wednesday, compared with 4.2 million at the same point four years ago, a 50% increase.

The top diplomats from the Group of 20 largest world economies, including envoys from Russia and China, are meeting in Atlanta as they face deep rifts over multiple wars and other global crises that threaten international security and trade.

U.S. Secretary of State Marco Rubio will chair the gathering Friday and Saturday that will set the stage for a G20 leaders summit hosted by President Donald Trump at his Miami golf club in December.

Serbia 's student movement on Thursday demanded the resignations of top officials in the police, intelligence agencies and the judiciary as they prepare to take power after a historic election win last weekend against former strongman leader Aleksandar Vucic.

The students at a news conference also urged Serbia's election authorities to officially declare the final results of Sunday's ballot without delay after a rerun at some 50 polling stations next Sunday, so that a new Parliament and government can be formed.

Spain's second high-speed rail disaster this year, in which one train struck another from behind, killing 69 people, has raised fresh concerns about the safety of the country's rail network ahead of a national election.

Search teams with sniffer dogs continued to look for victims on Thursday, a day after the collision in central Spain. Cranes shifted the carriages as police and soldiers picked through the wreckage strewn down the gravel slope where at least three train carriages were tossed by the impact.

Humanitarian aid is poised to roll into the stricken city of Oleshky on Friday, a Ukrainian official said, as a localized ceasefire between Russia and Ukraine stretched into a third day and military units cleared away landmines.

Moscow and Kyiv have observed the truce in and around the devastated southern Ukrainian city since Tuesday, despite remaining locked in war since Russia's all-out invasion of its neighbor more than 4 ½ years ago. Previous efforts to secure ceasefires either never worked out or the truces quickly fell apart.

More than 600 Ukrainian drones were launched toward the Moscow region overnight, with most of them shot down, the Russian capital's mayor said early Thursday as the city hosts a Russia-Africa summit.

The leaders of 22 African countries were at the two-day meeting, according to the Kremlin.

A planned six-day ceasefire in and around a Russian-occupied city in southern Ukraine held for its first day and night, officials said Wednesday, but Moscow and Kyiv continued to batter each other elsewhere.

The localized truce in the devastated southern city of Oleshky began Tuesday and is due to last through Sunday as a humanitarian operation races to get urgently needed food and medicine to about 2,000 remaining residents, as well as evacuate those who want to leave.

Flávio Bolsonaro, the defeated Brazilian presidential candidate, fled his country to Argentina and then Ecuador alongside his wife and two daughters, Argentina's migration authority said on Wednesday. The 45-year-old senator and his family were granted United States visas the day before by the Trump administration.

The move is almost certain to cause a big diplomatic rift between Brazil's newly reelected President Luiz Inácio Lula da Silva and his Argentine counterpart Javier Milei, who traveled to Brazil to take part in Bolsonaro's campaign.