Officials at the Department of Homeland Security and the Defense Department are racing to set up multiple tent facilities in Guantanamo Bay, Cuba, to house thousands of migrants, but the scattered efforts have prompted questions internally about who’s in charge and what will happen once people arrive on site.

ACLU filed the complaint on behalf of families of detainees, who say the detainees themselves cannot sue because they are being held without the ability to communicate to the outside world. The suit seeks immediate phone and video access to detainees, as well as in-person visitation.

Civil liberties and immigration advocacy groups are suing the Trump administration over its use of the base for immigration detention.