As the war in Ukraine rages on, thousands of Poles have opened their homes and their hearts toward Ukrainians fleeing the war next door. Poland, a country of 38 million people, has already taken in nearly 2.6 million Ukrainian refugees, or 60 percent of the total exodus since the Russian invasion began at the end of February, according to the United Nations. Despite the millions of individual examples of generosity toward fleeing Ukrainians, concerns are growing that Poland cannot withstand this level of migration. "Right now we can help them," said Tomasz Szeleszczuk, a government official in charge of nine villages near the Ukrainian border who was proud to see locals step up to help Ukrainians in need. But if many more come, the community will need more help from the Polish authorities, he said. "It’s a challenge for the whole system." Read the full story here. In other news, Ukrainian President Volodymyr Zelenskyy warned of a ramped-up Russian offensive in his country's east, as civilians rush to flee the region ahead of what many fear could be a brutal new phase in the war. Follow Monday's live blog and NBC News Now for all the latest developments. Read more of our in-depth coverage: Russia appoints general with cruel history to oversee Ukraine offensive
Professionals in Poland find new calling: Helping Ukrainian refugees | 