50,000 Ukrainian refugees fleeing Russia’s war have arrived in UK.

According to U.K. Prime Minister Boris Johnson, they are doing “everything possible” to help Ukrainians “build lives here.” According to the United Nations High Commissioner for Refugees, a total of over 6 million people left Ukraine since Feb. 24, with nearly 3.5 million have been registered in Poland, followed by nearly 1 million people settling in Romania.