MORGANTON, N.C. -- Police said a registered sex offender brought along on a church trip now faces charges for molesting one of the young members.

Domiontae Omar Robinson, 21, was arrested in Baton Rouge, La., after a 13-year-old boy called his father and told him he was sexually assaulted by the man while he was sleeping Thursday, officers said. Robinson is charged with indecent behavior with a child and is being held on $175,000 bond.

The investigation is now continuing in the Burke County town of Morganton, where Robinson lives. Police believe there may be other victims.

Members of Harvest Praise Church said they knew the man was on the sex offender registry but they still allowed him to accompany youths on overnight functions. More than a dozen children are on the church's latest trip, a week-long mission to help hurricane victims in the Baton Rouge area.

Robinson was put on the North Carolina Sex Offender Registry after he was charged in 2002 of taking indecent liberties with a minor. He was sentenced to 36 months probation.