( CNN ) -- A grand jury has indicted polygamous sect leader Warren Jeffs on a second sexual assault charge in connection with a probe of his Texas compound , prosecutors said Wednesday . The charge against Warren Jeffs stems from a probe into his sect 's Yearning for Zion Ranch near Eldorado , Texas . The Schleicher County , Texas , grand jury charged Jeffs , who already could be sentenced to life in prison after being convicted of a different charge in Utah , with a first-degree felony count of aggravated sexual assault . The indictment is Jeffs ' second in Schleicher County . In July , he was charged with sexually assaulting a child under 17 . Grand jurors have also indicted three more members of Jeffs ' Fundamentalist Church of Jesus Christ of Latter-day Saints , prosecutors said Wednesday . One member faces a count of conducting the unlawful marriage of a minor , another faces three counts of bigamy and a third faces three counts of bigamy and one count of tampering with evidence . The Texas charges stem from a state and federal investigation into the sect 's Yearning for Zion Ranch outside Eldorado , about 190 miles northwest of San Antonio . In April , child welfare workers removed more than 400 children from the compound , citing allegations of physical and sexual abuse . After a court battle , the Texas Supreme Court ordered the children returned in June , saying the state had no right to remove them and there was no evidence to show the children faced imminent danger of abuse on the ranch . To date , 12 people associated with the compound have been indicted as part of the investigation , Texas Attorney General Greg Abbott said . Jeffs , 52 , is the leader and `` prophet '' of the estimated 10,000-member FLDS , an offshoot of the mainstream Mormon church . The FLDS openly practices polygamy at the YFZ Ranch , as well as in two towns straddling the Utah-Arizona state line -- Hildale , Utah , and Colorado City , Arizona . In Utah , Jeffs was convicted on accomplice to rape charges for his role in the marriage of a sect member to a 14-year-old . He is awaiting trial in Arizona , where he faces similar charges . He faces a sentence of up to life in prison for the Utah conviction , and he also could face another life term if convicted of the Texas charges . His attorney in Arizona , Michael Piccarreta , has questioned the motives of Texas authorities , telling CNN in a July interview that the state 's investigation into Jeffs and his followers is an effort `` to cover themselves up on the botched attack on the ranch in Texas . ''
Warren Jeffs indicted on second Texas sexual assault charge in four months . Grand jury also indicts three other members of polygamous sect . Charges stem from probe of sect 's ranch outside Eldorado , Texas . Jeffs convicted in Utah of accomplice to rape for role in member 's marriage to teen .