FBI responding to the scene of a shooting outside San Antonio, Texas

Multiple people have been killed and many more injured in a shooting Sunday at First Baptist Church of Sutherland Springs, Texas, authorities said. Credit: First Baptist Church of Sutherland Springs, Texas

PREVIOUSLY REPORTED: 

Local police also have responded to the scene, which occurred at the First Baptist Church, a witness told CNN.

The witness, a cashier at a gas station across the street from the church, said she heard about 20 shots being fired in quick succession while a church service was underway.

Sutherland Springs is about 30 miles east of San Antonio.