Hundreds of Ukrainians live in a makeshift refugee camp near the city of Tijuana.

The number of Ukrainian citizens staying in the United States increased sharply a few days after the White House administration announced its readiness to receive up to one hundred thousand Ukrainians in the country.

Many Ukrainians fleeing the Russian invasion flew to Mexico and headed to the U.S. border in the hope that the country’s authorities would allow them to reunite with American relatives or friends.

People are sitting on blankets, folding chairs; some are pitching tents near the border entry point to the United States. American volunteers in neon vests — including Ukrainian Americans who came to Tijuana — make lists of arrivals. On average, the time it takes to cross the U.S border from the moment of being added to the list is about one day, human rights activists say.

At the moment, about 600 Ukrainians live in the camp on the border, and about 500 more have stayed in hotels in Tijuana, city administration spokesman Enrique Lucero said, citing data from volunteers. According to him, about 40% of the arrivals are children. About 100 Ukrainians receive permission to enter the United States every day.

The U.S. Customs and Border Protection Service said that data on the number of Ukrainians who entered the U.S. in March will be released in the coming weeks. The number of Ukrainians arriving in the United States is relatively small compared to the 3.8 million residents of Ukraine accepted by European countries after the invasion of the Russian Federation.

In Europe, the situation with refugees from Ukraine is called the largest humanitarian crisis in the region since the Second World War.