Brethren from the EBTC (European Bible Training Center) in Berlin have been risking their lives to drive food & supplies to brother & sister churches in Kiev. They have been posting regular updates with prayer requests here: It's in German, but you can use Google translate to translate into English:

https://www.ebtc.org/blog/updates-und-aktuelle-gebetsanliegen-betet-fuer-die-ukraine