Powerful explosions were heard in Kyiv on Friday and fighting raged in the east after Ukraine claimed responsibility for the sinking of the Russian Navy's Black Sea flagship.
The explosions appeared to be among the most significant in Ukraine's capital region since Russian troops pulled back from the area earlier this month in preparation for battles in the south and east.
Ukraine said it hit the Moskva missile cruiser with a Neptune anti-ship missile. The Soviet-era ship sank on Thursday as it was being towed to port following a fire and explosions, Russia's defense ministry said.