WASHINGTON—The American Civil Liberties Union sued the Trump administration Wednesday for access to migrants transported from the U.S. mainland to Guantanamo Bay Naval Base in Cuba, arguing that the government is denying rights the detainees may have under the Constitution and federal law.

Guantanamo Bay, a U.S. base in Cuba since 1898, may soon house thousands of detained migrants, following a proposal by the Trump administration.

President Trump has said the U.S. naval base at Guantánamo Bay would house what he called the "worst" migrants. Still, according to both internal government documents and U.S. officials, the administration is also sending nonviolent detainees who do not have serious criminal records or in some cases any criminal records at all.

By Ted Hesson WASHINGTON -The American Civil Liberties Union filed a lawsuit on Wednesday seeking access to dozens of migrants flown to a U.S. naval base in Guantanamo Bay, Cuba, saying they were being denied the right to an attorney.

Former HUD Secretary Julián Castro discusses what's happening between the Trump WH and the courts along with Trump accelerating Guantánamo Bay migrant plan.

A coalition of civil liberties and immigrant rights groups are suing to get access to immigrants transferred from the U.S. to detention at Guantánamo Bay in Cuba under President Trump 's recent order.

In a lawsuit, the groups asked a judge to enable lawyers to communicate with the men in case they would like legal representation.