Russia launched an intense missile and drone barrage at the Ukrainian capital Kyiv in the early hours of Friday, killing at least six people, Ukrainian officials said, as powerful explosions reverberated across the country.

Russia launched a "massive" drone and missile strike on Ukraine's capital and other areas early on Friday, days after Ukraine's surprise attack on its air bases. Five people were killed and 80 injured, Ukrainian officials said, with cruise missiles and hundreds of drones launched.

Ukraine’s shock drone strike on Russia’s strategic bomber fleet this week has generals and analysts taking a new look at threats to high-value United States aircraft at bases in the homeland and abroad – and the situation is worrisome.