"The capital is under a massive enemy attack. Seek protection," wrote Kyiv mayor Vitaliy Klychko on Telegram.
According to the head of the city's military command, Timur Tkachenko, several buildings were damaged. Journalists at both AFP and Kyiv Independent also reported hearing several loud explosions in the area around 3 a.m. local time.
The Zaporizhia region is also being warned of drone attacks, according to Governor Ivan Federov.
At 1 a.m., the Ukrainian Air Force issued a national warning of Russian airstrikes.
