Texas ? Young teenage girls at a polygamist compound in West Texas were required to have sex in a soaring white temple after they were married in sect-recognized unions, according to court documents unsealed Wednesday in San Angelo.

The temple “contains an area where there is a bed where males over the age of 17 engage in sexual activity with female children under the age of 17,” said an affidavit quoting a confidential informant who left the Fundamentalist Church of Jesus Christ of Latter Day Saints.

The temple also contained multiple locked safes, vaults and desk drawers that authorities sought access to as they searched for records showing alleged marriages of underage girls as young as 12 or 13 to older men and births among the teens. The affidavit unsealed Wednesday mentions a 16-year-old girl who has four children.

Texas law prohibits polygamy and the marriage of girls under 16.