A gunman shot and killed several people during a Sunday service at the First Baptist Church in Sutherland Springs, Texas, according to local media reports
The unidentified man walked inside the church and opened fire just before 11:30 a.m. local time, witnesses said, according to CBS affiliate KENS 5.
Police have not officially confirmed the number of casualties, but ABC News reports at least 20 people have been killed and 30 injured, citing law enforcement sources.