Russian drone strikes killed two people in Ukraine, officials said on June 7, as European leaders gathered in London to discuss piling pressure on Moscow over its four-year war.

Moscow and Kyiv have intensified drone strikes on each other in recent months as US-led diplomatic efforts to end the war remain stalled.

Ukraine launched a massive drone attack on Russia early Saturday. The strikes targeted Saint Petersburg, hitting an oil depot and a naval base. One person died in the attacks.…