The American Civil Liberties Union of Oklahoma is asking the Mounds (OK) Police Department to stop making religious statements on the department’s Facebook page, KFOR TV reports.

“Both the First Amendment of the United States Constitution and provisions of the Oklahoma Constitution protect against government officials establishing a state religion. The exclusive, pervasive promotion of the Christian faith by the Mounds Police Department represents a clear violation of those legal mandates.

By promoting one specific religion on its official Facebook page, the Mounds Police Department has established clear preference for that faith above other faiths and above no religious faith at all. This kind of government interference with our religious freedom is simply not permissible under United States or Oklahoma law,” said Brady Henderson, the ACLU of Oklahoma’s legal director.