Ukrainian President Volodymyr Zelensky on Monday expressed thanks to Polish head of state, Andrzej Duda, for his support of Ukraine in its war with Russia.
At least a quarter of a million Ukrainians are currently at the Polish border seeking refuge, most of them women and children, a senior government aide has said.
The Football Association of Poland (PZPN) has demanded Russia's exclusion from this year's World Cup in Qatar owing to the invasion of Ukraine.
A number of Polish companies which sell their products to Russia or have Russian contractors may suffer from the massive sanctions the West has imposed on Moscow for invading Ukraine, Erste Bank analysts have said.
Josep Borrell, the European Union's foreign affairs and security policy chief, has thanked Poland for its readiness to take the role of a logistic hub for EU support transports to Ukraine.
Health minister Adam Niedzielski on Friday said that a government plan for a "hospital train" to transport those injured in Ukraine is close to being finished.
Mateusz Morawiecki, the Polish prime minister, has announced Poland will close its airspace to Russian airlines owing to Russia's invasion of Ukraine.
Ukrainians fleeing the war will get free Covid vaccinations under a government programme, Adam Niedzielski, the health minister, announced on Friday.
The US and Poland stand arm in arm during the Ukraine-Russia conflict, the US ambassador to Poland tweeted on Friday.
About 29,000 people crossed Poland's border with Ukraine over the past 24 hours, with thousands of them declaring themselves as war refugees, the Polish head of the national security department has said.