LIBERTY, Mo. (AP) — About 100 Kansas City-area worshippers have participated in a Catholic prayer service to seek spiritual healing over sexual abuse within the local archdiocese.

The Kansas City Star reports that the service at St. James Catholic Church in Liberty was the eighth in a series called “Healing Our Parishes Through Empathy.”

Participants carried small stones in a somber procession to the altar, where they placed the pebbles at the base of a wooden cross to symbolize letting go of a burden they’ve carried. They then washed their hands in basins of water.