Ukrainian drone strikes damaged energy networks in Russia-occupied parts of southern Ukraine, leaving hundreds of thousands of people without power on Sunday, according to Kremlin-installed authorities there.

Meanwhile, Moscow has kept up its hammering of Ukraine's energy grid in overnight attacks that killed at least two people, according to Ukrainian officials.

A U.S.-based activist agency said Sunday it has verified at least 3,919 deaths during a wave of protests that swept Iran and led to a bloody crackdown, and fears the number could be significantly higher.

The Human Rights Activists News Agency posted the revised figure, up from the previous toll of 3,308. The death toll exceeds that of any other round of protest or unrest in Iran in decades, and recalls the chaos surrounding the 1979 revolution.

At least eight more countries say the United States has invited them to join President Donald Trump's Board of Peace, a new body of world leaders meant to oversee next steps in Gaza that shows ambitions for a broader mandate in global affairs. Two of the countries, Hungary and Vietnam, said they have accepted.

A $1 billion contribution secures permanent membership on the Trump-led board instead of a three-year appointment, which has no contribution requirement, according to a U.S. official who spoke on condition of anonymity about the charter, which hasn't been made public. The official said the money raised would go to rebuilding Gaza.

The Syrian government has announced a ceasefire with the Syrian Democratic Forces, taking almost full control of the country and dismantling the Kurdish-led forces that controlled the northeast for over a decade.

The announcement Sunday comes as tensions between government forces and the SDF boiled over earlier this month, eventually resulting in a major push by government forces toward the east. The SDF appeared to have largely retreated after initial clashes on a tense front line area in eastern Aleppo province.

Wildfires raging across central and southern Chile have left at least 18 people dead, scorched thousands of acres of forest and destroyed hundreds of homes, authorities said, as the South American country swelters under a heat wave.

Chilean President Gabriel Boric declared Sunday a state of catastrophe in the country's central Biobio region and the neighboring Ñuble region, around 500 kilometers (300 miles) south of Santiago, the capital.

The eight European countries targeted by U.S. President Donald Trump for a 10% tariff for opposing American control of Greenland blasted the move, warning that his threats "undermine transatlantic relations and risk a dangerous downward spiral."

The joint statement by some of America's closest allies signaled a possible turning point in the recent tensions over sovereignty and security nearly 24 hours after Trump's threat.

Spanish police said Monday that at least 39 people died in the high-speed train collision Sunday in southern Spain and rescue efforts were continuing.

The collision occurred when the tail end of a train traveling between Malaga and Madrid with some 300 passengers went off the rails near Cordoba at 7:45 p.m. It slammed into an incoming train from Madrid to Huelva, another southern Spanish city, according to rail operator Adif.

Tens of thousands of Cubans crowded Friday into an open-air plaza known as the "Anti-Imperialist Tribune" across from the U.S. Embassy in Havana to decry the killing of 32 Cuban officers in Venezuela and demand that the U.S. government release former president Nicolás Maduro.

The crowd clutched Cuban and Venezuelan flags as part of a demonstration organized by the government as tensions between Cuba and the U.S. remain heightened after the U.S. struck Caracas on Jan. 3 and arrested Maduro.

A court in Moscow on Friday began considering a lawsuit filed by the central bank against Euroclear, the Brussels-based clearing house that holds the bulk of Russian assets frozen by the European Union.

The lawsuit seeks to recover 18.2 trillion rubles ($232 billion) in damages incurred when Russia was barred from managing and disposing of its Euroclear funds and securities, the bank said. The case is being heard behind closed doors.

Torrential rains and flooding have killed more than 100 people in South Africa, Mozambique and Zimbabwe, and authorities warned Friday that more severe weather was expected across several countries in southern Africa.

South Africa has reported at least 19 deaths in two of its northern provinces following heavy rains that began last month led to severe flooding.