Source (ukrainian): https://www.unian.ua/war/vodiy-rozpoviv-shcho-z-nimechchini-v-rf-dostavlyayut-jizhu-liki-ta-inshu-produkciyu-cherez-polsko-biloruskiy-kordon-novini-donbasu-11738569.html

Ukrainian man in Poland attempts to block it: https://twitter.com/OscDomesticated/status/1502217391085920258