Ukraine on Thursday fought Russian forces along practically its entire border with Russia, and there was fierce fighting in the regions of Sumy, Kharkiv, Kherson, Odessa and at a military airport near Kyiv, an adviser to the presidential office said.
The Ukrainian official said they feared that Russian forces could be air dropped into the country and then try to penetrate the government district in Kyiv.
Russia's Federal Security Service (FSB) said Ukrainian border guards had abandoned all facilities at the Russian-Ukrainian border, the Interfax news agency reported.
(Reporting by Natalia Zinets; writing by Tom Balmforth; editing by Raissa Kasolowsky)
