Ukrainian President Volodymyr Zelensky said Ukraine expects "further hostile activity" from Russia as the European Union considers whether the country should be formally considered for candidate status.
The leaders of the 27 EU member states will meet this week to discuss the process.
Two American volunteer fighters for Ukraine were detained by Russian-backed separatists in Donetsk after being captured by Russian forces last week, according to Russian state media.
One says he was beaten.
The West must prepare for a long war in Ukraine as Russia makes incremental gains, NATO Secretary-General Jens Stoltenberg and British Prime Minister Boris Johnson have said.
They urged continued support for Ukraine.
Video summary of the war Ukraine - Russia: June 20
2022-06-21T05:35:48.416Z
Ukrainian President Volodymyr Zelensky said Ukraine expects "further hostile activity" from Russia as the European Union considers whether the country | CNN