HOUSTON, Texas – Church leaders voiced their closeness to victims of a school shooting in Santa Fe, Texas on Friday, calling Catholics to pray for all those affected.

Cardinal Daniel DiNardo of Galveston-Houston said that he was “deeply saddened” to receive news of the shooting.

“My prayers, along with the prayers of the faithful of the Archdiocese of Galveston-Houston, are with the victims and families of those killed and injured in this horrific tragedy,” he said in a statement.

“During this most difficult and challenging time, I know the Archdiocesan community will unite to support and offer healing to those affected. As a society, we must strive for a way to end such acts of senseless gun violence in our schools and communities.”

Shortly before 8 a.m. Friday, police were called to respond to a shooting at Santa Fe High School outside of Houston, Texas.

Officials confirmed 10 fatalities in the shooting – nine students and one teacher. At least 13 other people were injured, including at least two law enforcement officers, according to local media reports.

One 17-year-old male suspect is in custody and a second person of interest has been detained. Both are teenagers and are believed to be students at the school.

The Santa Fe Independent School District later reported that possible explosive devices had been found both at the high school and off campus. Law enforcement officials were working to render the items safe, the school district said.

Local officials at a press conference asked for prayers.

In a second statement later in the day, DiNardo spoke in his role as president of the U.S. Conference of Catholic Bishops, lamenting the “ever-growing list of those impacted by the evil of gun violence.”

“Sadly, I must yet again point out the obvious brokenness in our culture and society, such that children who went to school this morning to learn and teachers who went to inspire them will not come home,” he said. “We as a nation must, here and now, say definitively: no more death! Our Lord is the Lord of life. May He be with us in our sorrow and show us how to honor the precious gift of life and live in peace.”

Prayers were also offered by Bishop Gerald R. Barnes of San Bernardino, where in recent years shootings have taken place at both an elementary school and a facility for those with developmental disabilities.

“My prayers for those who died in this morning’s tragic school shooting at Santa Fe High School in Texas, their families, those injured and the entire school community,” Barnes said on Twitter. “May they receive God’s strength and His consolation in this time of shock and sadness.”

Bishop David Ricken of Green Bay tweeted that the students and families at the school would be remembered at a previously scheduled Mass taking place Friday morning.

“Our hearts are heavy hearing the news about Santa Fe High School. My prayers are with all those who are impacted by this horrible and senseless act. May the families of the victims experience the healing power of Jesus’ love,” said Archbishop Leonard Blair of Hartford.

Bishop Michael Olson of Fort Worth, Bishop Robert Cunningham of Syracuse, Bishop Michael Burbidge of Arlington, Va., and Archbishop Samuel Aquila of Denver also offered prayers on Twitter.