All of the victims in the Texas primary school shooting were in one classroom, according to a state public safety official.

The gunman barricaded himself inside a classroom, “shooting anyone that was in his way,” the official said.

Police and others responding to Tuesday’s attack broke windows at the school in an effort to allow students and teachers inside to escape, Lt Christopher Olivarez of the Texas Department of Public Safety told NBC’s Today.

Olivarez told CNN all victims were in the same fourth-grade (9-10 years old) classroom at Robb Elementary School in Uvalde, which is around 80 miles (130km) west of San Antonio.

Salvador Ramos, 18, entered the school after exchanging fire with authorities and having earlier shot his grandmother.

Multiple children in the classroom survived the shooting with injuries, Olivarez told Fox News.

“We do know that there were multiple children that did survive, that were injured. I do not have the exact number at
this time,” he said.

Salvador Ramos had ‘domestic disturbance’ before shooting – what we know so far about Texas gunman

Texas school shooting victims: ‘Beautiful’ teacher and three students named as 21 killed

Texas school shooting: Parents wait on news of children after 21 killed in shooting at primary school

A total of 21 people were killed, including two teachers and 19 children. Some victims from the shooting have been named.

New images of killer emerge – live updates

He was eventually shot dead after committing America’s deadliest school massacre since the attack on Sandy Hook Elementary in Connecticut in 2012, where 27 people were killed.

President Joe Biden expressed exasperation at “another massacre” and said it was “time to act” as he addressed the nation.

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