Three US citizen children were deported to Honduras with their mothers last week, including a 4-year-old receiving treatment for metastatic cancer, according to the families’ attorneys and civil rights and immigration advocacy organizations.

Immigration and Customs Enforcement agents have in recent days deported a Cuban-born mother of a 1-year-old girl, separating them indefinitely

The case and others raise questions about who is being deported, and why, and come amid a battle in federal courts over whether President Donald Trump’s immigration crackdown has gone too far.