Ukrainian officials have reported that airstrikes hit Lviv on Saturday, after explosions were heard earlier outside the city. DW's Amien Essif reported from a shelter. "This time," he said, "there was what sounded like thunder."

Also in Lviv, Fanny Facsar said many people are starting to realize that even western Ukraine is not safe from Russian attacks.

Later Saturday, Max Zander was in Warsaw to follow US President Joe Biden's speech on the Ukraine conflict. He said Biden's words of support and solidarity were warmly received in Poland, despite his controversial remarks calling Russian leader Vladimir Putin a "butcher" who "cannot remain in power."

The United Nations has said more than 3.7 million people have fled Ukraine since Russia launched its full-scale attack on the country in late February — more than half of them to Poland.

Earlier in the week, in the Polish city of Przemysl near the border with Ukraine, Birgitta Schülke met with some of the hundreds of Ukrainian women and children who have left their country in recent days.

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