More than 5,000 Ukrainian refugees were detained by U.S. officials while trying to cross the border to flee Russia's invasion of their homeland, new data show on Monday. 

Customs and Border Protection (CBP)'s recently released March numbers show 5,071 Ukrainians have tried to enter the U.S. illegally by land, air or sea. 

Russia's brutal and unprovoked invasion of Ukraine has forced more than 10 million people to leave their homes, according to the United Nations, with over four million having left the country altogether. 

And despite the well-documented flood of migrants coming to the southwest border from Central and South America, the latest figures show that people are attempting to illegally enter the U.S. from places as far as Turkey and China.

Nearly 90,000 of the 249,198 CBP encounters with migrants on either the northern or southern borders came from countries outside of the Northern Triangle of Mexico, Guatemala, Honduras and El Salvador.  

It comes as the Biden administration is facing growing opposition to lifting the migrant expulsion policy Title 42, which the federal government said would expire on May 23. 

The Centers for Disease Control and Prevention, which is behind the measure allowing border agents to turn asylum-seekers away on contact in the name of stopping the spread of COVID-19, said it was no longer necessary to public health. 

Secretary of State Antony Blinken is heading down to Panama on Tuesday, where he will discuss migration with Homeland Security Secretary Alejandro Mayorkas and officials from other nations in the Western hemisphere.