A nun was released from immigration custody after she was arrested walking to Mass in her habit in South Texas.

Sister Leticia Ugboaja was walking to Our Lady of Sorrows Church in McAllen, Texas, just a few miles from the U.S.-Mexico border on Sunday when she was detained by U.S. Immigration and Customs Enforcement officers.

The Department of Homeland Security and ICE have not responded to a request for comment since Sunday.

Parish officials posted a message on social media shortly after the arrest that gained traction in the news and led to Congress members including U.S. Rep. Monica de la Cruz intervening on Ugboaja’s behalf.

The nun is part of the Daughters of Mary Mother of Mercy and volunteered as an Extraordinary Minister of Holy Communion at Our Lady of Sorrows Church, according to Brenda Riojas, a spokesperson for the Diocese of Brownsville.