Ukraine’s president has told airlines that Russian airspace will be “effectively closing” as his country escalates its drone strikes. “We want to warn every airline that uses Russian airspace, every insurer, everyone who still uses key Russian airports: the Russian sky is becoming completely dangerous,” Volodymyr Zelensky said. Russian President Vladimir Putin responded by saying…

Provisional results announced by the country’s electoral commission showed that 70% of voters backed the changes in Sunday’s referendum, while 30% voted against them. Turnout was reported at nearly 60%. The new constitution strengthens the presidency at the expense of the prime minister, altering the balance of power under Guinea-Bissau’s semi-presidential system. Previously, Guinea-Bissau’s legislature…