The Oglala Sioux Tribe is demanding “immediate federal action” after they said federal officials detained several tribal members in Minnesota. In a Tuesday press release, the Tribe said four members were detained by Immigration and Customs Enforcement (ICE) officers last week during the Trump administration’s massive federal immigration crackdown in the state. One person was released, but three tribal members remain in custody, the Tribe said. “The Tribe is demanding immediate federal action and government-to-government consultation,” the Tribe wrote in the press release. In addition to the press release, Oglala Sioux Tribe President Frank Star Comes Out issued a memorandum to federal officials Tuesday, insisting on the release of the detained tribal members. “NOTICE IS HEREBY GIVEN: Failure to honor our treaties and federal law will result in the Tribe pursuing all available legal remedies, including habeas corpus relief, injunctive actions, civil rights violation claims, and treaty enforcement litigation,” Star Comes Out wrote. “Our sovereignty is inherent. Our treaties are binding. Our citizenship is not negotiable.” The message, which was directed to federal officials at the Departments of the Interior (DOI), Homeland Security (DHS) and the Bureau of Indian Affairs (BIA), said that the tribal citizens were homeless and detained under a bridge in Minneapolis. Additionally, Star Comes Out claimed that when the Tribe reached out to request more information about its detained members, federal officials stipulated the release of information on the Tribe signing an “immigration agreement” with DHS and ICE. “We will not enter an agreement that would authorize, or make it easier for, ICE or Homeland Security to come onto our tribal homeland to arrest or detain our tribal members,” he wrote. “The Oglala Sioux Tribe is a federally-recognized Indian tribe,” he continued. “We have a treaty-based, nation-to-nation relationship with the United States. We are entitled to information from federal agencies concerning our tribal citizens and we should not have to [have] an immigration agreement with ICE to get that information.” On Wednesday, a DHS spokesperson said they have been “unable to verify any claims that DHS law enforcement arrested or even encountered members of the Oglala Sioux Tribe” and that they have not received any claims from detainees that they are members of this Tribe. Additionally, the spokesperson denied that an agreement was offered to the tribe in exchange for information. “ICE did NOT ask the tribe for any kind of agreement, we have simply asked for basic information on the individuals, such as names and date of birth so that we can run a proper check to provide them with the facts,” the spokesperson said. An updated version of the memorandum on Thursday clarified that the immigration agreement was offered as only “one option for the Tribe to have easier access to information.” The Hill has also reached out to ICE, DOI and the BIA for comment. Updated at 5:43 p.m. EST Jan. 15 Copyright 2026 Nexstar Media Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.