Homeland Security Secretary Kristi Noem on Wednesday will visit the high-security El Salvador prison where Venezuelans who the Trump administration alleges are members of the Venezuelan Tren de Aragua gang have been held since their removal from the U.S.

The U.S. government used an 18th-century wartime law to deport nearly 300 Venezuelan immigrants to El Salvador, where they were immediately transferred to the country’s maximum-security gang prison

Families of people sent to El Salvador from the U.S. are sounding the alarm about how the Trump administration is disappearing people.