Russian forces killed six people and wounded dozens of others, including two children and a pregnant woman, in attacks on Ukraine's energy facilities, Kyiv announced Tuesday.

President Volodymyr Zelensky said the latest bombardment undermined peace efforts and urged allies to step up pressure on Moscow to end the war, which is grinding towards its fourth anniversary.

The United Arab Emirates will not allow attacks on Iran to be launched from its territory, the foreign ministry said in a statement on Monday.

Last week, President Donald Trump said a U.S. "armada" was heading toward the Gulf and that Washington was watching Iran closely after a bloody crackdown on protesters.

German Foreign Minister Johann Wadephul on Monday denounced Russia's "stubborn insistence on the crucial territorial issue" following talks between Russian, Ukrainian and U.S. envoys last week in Abu Dhabi.

"What I am hearing and reading today, including from the negotiations in the United Arab Emirates, is only Russia's stubborn insistence on the crucial territorial issue," Wadephul said in Riga. "And if there is no flexibility here, I fear that the negotiations may still take a long time or may not be successful at this stage."

Yemen's Iranian-backed Houthi rebels threatened new attacks on ships traveling through the Red Sea corridor, likely trying to back Iran as it worried Monday about an approaching U.S. aircraft carrier after President Donald Trump threatened military action over its crackdown on nationwide protests.

A short video by the Houthis included previously published images of a ship on fire, with the caption: "Soon." The rebels did not elaborate, but their campaign in the Red Sea saw over 100 ships attacked as part of a campaign the Houthis said pressured Israel over its war against Hamas in the Gaza Strip. The Houthis halted their fire after a ceasefire in the conflict, though they've repeatedly warned they could resume fire if needed.

A ferry carrying 342 passengers sank Monday morning in the southern Philippines, leaving at least eight dead, a local mayor said.

There were "8 confirmed casualties" so far from the sinking of the M/V Trisha Kerstin 3, which was traveling to the island of Sulu, Arsina Laja Kahing-Nanoh, a town mayor in Basilan province, said in a Facebook post.

Former president Bill Clinton on Sunday decried "horrible scenes" in Minneapolis after two U.S. citizens were killed by federal agents, as the veteran Democrat urged Americans to protest what he called unacceptable government action.

"It is up to all of us who believe in the promise of American democracy to stand up, speak out, and show that our nation still belongs to We the People," Clinton said, warning that Trump administration officials have "lied to us" about the fatal encounters and used increasingly aggressive tactics in their immigration crackdown.

Venezuela's acting president Delcy Rodriguez said Sunday she had "enough" of orders from Washington, in reference to pressure from the United States since the strikes and capture of deposed autocrat Nicolas Maduro.

"Enough orders from Washington on politicians in Venezuela. Let Venezuelan politics resolve our differences and internal conflicts. Enough of foreign powers," Rodriguez said in an address to oil workers in the eastern state of Anzoategui.

The Kremlin on Monday said the US-brokered trilateral talks in the UAE between Russian and Ukrainian negotiators had been held in a "constructive spirit" but that there was still "significant work ahead".

"It would be a mistake to expect any significant results from the initial contacts... But the very fact that these contacts have begun in a constructive spirit can be viewed positively. However, there is significant work ahead," Kremlin spokesman Dmitry Peskov told journalists.

Cuban President Miguel Diaz-Canel defended his country's military preparedness exercises as a deterrent against potential aggression from the United States.

Ukrainian President Volodymyr Zelensky sought more air defense suppport from allies on Sunday as hundreds of buildings in Kyiv were still without heating for a second day after Russian strikes.