The fire that killed at least 40 people in a Swiss bar on New Year’s Day was made more likely by apparent flaws in the site’s design and management, experts say.

Swiss authorities say the fire was probably sparked by small fireworks on champagne bottles that ignited foam insulation on the bar’s basement ceiling.

Galloping inflation and a currency crisis have provoked demonstrations across the country.

President Trump announced that U.S. forces had carried out “a large scale strike against Venezuela” and were flying President Nicolás Maduro and his wife out of the country. The Trump administration had been building pressure on Mr. Maduro for months.

While Kyiv has reported progress in negotiations, and is accelerating talks in the coming days, major questions remain unresolved about which countries will provide what kind of security for how long.

The Saudi-backed government in Yemen said it would send forces to reclaim territory from a group that the United Arab Emirates supports.

Kyrylo Budanov, who has served as Ukraine’s military intelligence chief, is seen as a potential rival to Mr. Zelensky if elections are held.

About 40 people died and more than 100 others were injured at a bar in a ski town, where the authorities were trying to pinpoint the cause and identify bodies. A 17-year-old Italian golfer is among the dead.

Mr. Trump’s remarks that he was ready to come to the protesters’ “rescue” are a sharp escalation as protests over economic hardship turned deadly.

The Zaporizhzhia plant, occupied by Russia, would be crucial to powering Ukraine’s postwar recovery.