Poland called the attack an “escalation,” while NATO and the EU said Russia was trying to undermine Western support for Ukraine.

Russian strikes damaged a gas station near the Polish border and hit a Kyiv-Warsaw train locomotive, prompting FM Sybiha to demand full sanctions.

Two Russian drone strikes hit near the Polish border early on September 13, Ukrainian authorities have reported, attacks that Kyiv said was Moscow “knocking on the doors of the EU…