- Russia's Wagner group on Tuesday said it has controlled more than 80 percent of Bakhmut. Ukrainian military officials did not address the claims, but said the forces were holding firm.

- The leak of U.S. documents—many of them related to Russia and Ukraine— presents a "very serious" risk to U.S. national security, the Pentagon said on Monday.

- The European Organization for the Safety of Air Navigation predicts that restrictions on flights in the airspace of Ukraine and Russia will remain in place until 2029.