LINCOLN, Neb. (AP) — A civil liberties organization has sent a letter to 30 youth group homes in Nebraska after it said it received complaints that some children have been turned away from homes for being gay.

The American Civil Liberties Union of Nebraska said in the letter sent Wednesday that it has recently fielded complaints from probation officers and legal representatives who have had children rejected for placement solely based on the child’s sexual orientation.

The letter, addressed to group home directors and CEOs, urges them to provide clear guidelines to front-office staff to treat all children equally and not turn away gay, lesbian, bisexual or transgender youth.

The Nebraska Department of Health and Human Services said it has informed group homes of its policy not to discriminate based on race, color national origin or disability, but did not answer questions about whether its nondiscrimination policy includes sexual orientation.