A Cornell University research student suing the Trump administration to stop deportations of pro-Palestinian foreign students has been ordered to surrender to immigration authorities for deportation, Al Jazeera reports.

Momodou Taal, a dual citizen of the UK and The Gambia, first became aware he was being targeted for deportation when unidentified law enforcement officers came to his home seeking to detain him, according to The Guardian. The visit took place just days after the lawsuit was filed.

In a statement published to social media, Taal’s lawyer, Eric Lee, said the government’s actions were unconstitutional. “We are outraged, and every American should be too. We urge the population to defend the right to freedom of speech against the urgent threat of dictatorship by exercising that right actively and vigorously,” he said.