Detainees at the Bluebonnet immigrant detention center in the small city of Anson, Texas, sent the outside world a message this week: S-O-S.

More than 30 detainees arranged themselves in a dirt yard at the Bluebonnet Detention Facility in Anson, Texas, to form the letters “S-O-S,” an internationally recognized distress signal, while a drone flew overhead,

New details deepen questions about the deportations, showing that El Salvador’s president pressed for assurances that the migrants were really members of the Tren de Aragua gang.