Russia's attack on the Yahodyn border crossing on the Polish border will not weaken the resolve of Ukraine's partners but, on the contrary, will strengthen their arguments about the Kremlin's irresponsibility and their determination to deter it.

Polish Foreign Minister Radoslaw Sikorski said this at a joint briefing with his Ukrainian counterpart Andrii Sybiha in Kyiv on Sunday, according to an Ukrinform correspondent.

"Russian terrorism is not just knocking on the door – it is already in the house. Let me remind you: Russia's hybrid war has a kinetic dimension. It is not just some minor inconveniences on the internet, not just disinformation or espionage. We have already faced cases of arson in Poland, attempts to cause plane crashes in Lithuania and an attempt to derail a train in Poland," he said, commenting on the attack on the Yahodyn border crossing.

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Sikorski recalled the attack on the airport in Leipzig, the dispatch of agents to Britain and Germany, as well as Russian missiles and drones falling on Polish territory. According to Sikorski, today's attack is another escalation.