More than 4 million Ukrainians have fled since the Russian invasion. Here’s where they’re going.

Children who fled the war in Ukraine rested inside a temporary refugee shelter that was an abandoned TESCO supermarket in Przemysl, Poland, after being transported from the Polish Ukrainian border on Tuesday.Omar Marques/Getty

More than 4 million Ukrainians have fled the country since the Russian invasion began in late February, according to UN estimates, a sizable portion of the country’s prewar population of 44 million.

The chart below shows where the refugees are going. The vast majority have fled to Poland, which shares a border with Ukraine and is a member of the European Union. They’re also fleeing to Hungary and Slovakia, also EU member states.

According to the United Nations, the refugee crisis is the fastest exodus Europe has seen since World War II. As of mid-March, when one million children had fled, UNICEF spokesman James Elder called it “a dark historical first.” Many more have joined their ranks since then. Aside from children, most others were women, due to a Ukrainian government decree forbidding men aged 18 to 60 from leaving the country.

Material from the Associated Press was used in this report.