GREENBELT, Md. (AP) — A federal judge on Friday ordered the Trump administration to arrange for the return of a Maryland man to the United States after he was mistakenly deported to a notorious El Salvador prison, while a U.S. government attorney was at a loss to explain what happened.

The ruling rejected the White House’s claim that it lacks the power to retrieve Kilmar Abrego Garcia, a Salvadoran national, because he is no longer in the U.S. Immigration and Customs Enforcement has corrected deportation errors in previous years, according to Abrego Garcia’s attorney and legal experts.