Ceasefire efforts come at a time when Ukraine is fast losing ground on the battlefield amid a freeze in US military aid and intelligence sharing

Russia said it was hit by a “massive” drone attack overnight Tuesday, hours ahead of critical talks between officials from Washington and Kyiv.

Ukrainian drones targeted Moscow for a second time this week, with city authorities saying early Friday that air defense systems downed four unmanned aircraft near the Russian capital. Moscow Mayor Sergei Sobyanin said emergency crews were dispatched to areas where debris from the intercepted drones had fallen.