The lawsuit—filed Wednesday in federal court by the ACLU, Center for Constitutional Rights (CCR), International Refugee Assistance Project (IRAP), and ACLU of the District of Columbia—was brought on behalf of several plaintiffs, including the sister of a Venezuelan man being held at the facility. It demands that all those being detained have immediate access to legal assistance.

According to the groups, the administration “has provided virtually no information about immigrants newly detained at Guantánamo, including how long they will be held there, under what authority and conditions, subject to what legal processes, or whether they will have any means of communicating with their families and attorneys.”