137 Ukrainians have died since the start of the Russian offensive, said Ukrainian President Volodymyr Zelensky.
According to him, Moscow is hitting not only military targets but also civilian targets. European Union leaders have agreed in principle to impose new economic sanctions on Russia. The United States did the same earlier.
Russia has launched a full-scale air and ground operation against Ukraine. A series of explosions shook a number of cities in all parts of the country at 5 a.m. this morning, and then Russian troops invaded Ukraine from three sides - the borders with Belarus and the border with Russia and the annexed Crimean peninsula.
Russia is attacking Ukraine - its troops have crossed our northern borders, journalist Yuriy Butusov was quoted as saying by the Ukrainian news agency UNIAN.
"Military sites across the country have been attacked, primarily parts of the (Ukrainian) air defense and control systems," he wrote.
"Ukraine's armed forces are resisting," Butusov added.
Powerful explosions were heard this morning in the Ukrainian capital Kyiv, the southern city of Odessa and the eastern cities of Mariupol and Kramatorsk after Russian President Vladimir Putin announced a military operation against the country, AFP reporters at the scene said.
Invasion of Ukraine: Putin Decided to Conduct "Special Operation to Protect Donbas"
German airline Lufthansa has announced that it will suspend flights to the Ukrainian capital Kyiv from tomorrow due to growing fears of a Russian invasion.
The airline said it would also suspend flights to Odessa, a key Black Sea port.
"The safety of our passengers and crew is our top priority at all times," Lufthansa said.
This was stated by the Deputy Chief of the People's Militia of the self-proclaimed Donetsk People's Republic (DNR), Eduard Basurin.
"According to our information, the Armed Forces of Ukraine are carrying out activities that we consider preparations for offensive operations," Basurin wrote on the Telegram channel of the DNR militia.