[Updated at 1:48 p.m. ET] At least one person was killed and at least two others were injured in a shooting Wednesday at a Texas courthouse, a judge said.

The shooting occurred outside a courthouse in Jefferson County, Texas, Judge Larry Gist said.

"There was a defendant on trial. It was break time, lunchtime, and he apparently shot three people, maybe four," Gist told CNN.

A witness in the case against the suspect was one of those shot, said Gist, who had left the courthouse for lunch and heard shots fired from a block away.

Police shot the suspect, and the courthouse was evacuated after the shooting, Gist said.

KBMT: 1 reported dead in Jefferson County courthouse shooting