Latest news from Poland and the world, aggregated from multiple sources
Donald Tusk's comments came after Reuters reported that a senior US official intervened to ensure that Zbigniew Ziobro received a visa.
It remains unclear what the legal consequences of recognising such marriages conducted abroad will be.
The vote was declared "illegal" by the opposition.
Three Ukrainians were attacked, one of whom was hospitalised with a fractured skull.
Over half of recipients were Ukrainians.
Warsaw complied with a court order to transcribe into its civil registry a marriage between two men that took place in Germany.
"Forcibly transferring Ukrainians into an active war zone shocks the conscience and violates international law."
"This is what communism looks like in the 21st century," declared Dominik Tarczyński.
The decision deepens an impasse over the court between the government and the opposition-aligned president.
The mayor of Warsaw said today his city would already begin recognising same-sex marriages conducted in other EU states.
Zbigniew Ziobro fled from Hungary, where he had asylum, to the US.
The development came a day after new Hungarian PM Péter Magyar, who has pledged to extradite Zbigniew Ziobro, took office.
"This crumbling state has no problem with being colonised by Indians and Arabs but it does have a problem with me," said Sławomir Mentzen.
Poland's justice minister welcomed the operation as "a decisive response by the state to crimes against children".
Find Polish businesses, events and classifieds in your area!