The Indian Health Service, an HHS agency tasked with providing health services to American Indians and Alaska natives, has stopped several care services due to the government shutdown, Kaiser Health News reports.

Parts of the federal government shut down Dec. 22 after Congress and the White House did not reach a spending deal the previous night, according to CNN. Funding expired for about one-fourth of the federal government.

Since Congress has not approved funding for the Indian Health Service, which is run by HHS but receives money through the Department of the Interior, IHS is significantly affected by the shutdown. The only IHS services that can continue are those that meet “immediate needs of the patients, medical staff and medical facilities,” the shutdown contingency plan said.