On Tuesday, a shooting at an elementary school in Uvalde left 21 people dead, including 19 students, a teacher, and an adult.

Governor Greg Abbott initially announced that 14 students and their teacher were killed in their classroom. Still, later Tuesday, a Texas official confirmed the death toll was 19 students and two adults, according to CNN. His grandmother was also shot but survived the attack.

Salvador Ramos, a resident of Uvalde, was identified by Abbott as the shooter. Around 11:30 a.m., the shooter opened fire at Robb Elementary School before police shot him.

According to Abbott, police believe the shooter, armed with a handgun and possibly a rifle, acted alone. The children killed were in the second, third, and fourth grades, police reported.

The city of Uvalde has approximately 16,000 residents and is located about 85 miles west of San Antonio.

In a statement, Congressman Tony Gonzales said, “I am heartbroken for our South Texas community. It is devastating when our innocent children become the victims of senseless violence. We are devastated.”