Women react outside a civic centre where students had been transported from Robb Elementary School

A school employee talks through the window of a school bus to one of the parents near the scene of the shooting in Uvalde, May 24, 2022 [Marco Bello/Reuters]

Governor Greg Abbott said an 18-year-old shooter entered Robb Elementary School in Uvalde, Texas, and killed 15 people.

At least 14 pupils and one teacher were murdered in a shooting at a primary school in the US state of Texas, according to Governor Greg Abbott, in the country's latest mass shooting.

Abbott told reporters Tuesday afternoon that an 18-year-old shooter opened fire at Robb Elementary School in Uvalde, a tiny town about an hour west of San Antonio.

"He shot and killed 14 pupils and one teacher — horribly, incomprehensibly," Abbott added.

Abbott said the gunman was himself killed, apparently by police officers responding to the scene.

"The gunman was... an 18-year-old guy from Uvalde." "It is thought he abandoned his car and entered the Robb Elementary School in Uvalde with a handgun and maybe a rifle, although this has yet to be proven," the governor added.

On social media, the shooting in Uvalde brought criticism and grief, as well as fresh demands for action to reduce gun violence in the country.

Gun violence has been a concern in the United States for decades, eliciting condemnation and calls for more regulations, particularly in the aftermath of school shootings.

According to the latest data from the Centers for Disease Control and Prevention (CDC), the United States reported 19,350 firearm murders in 2020, up nearly 35% from 2019.

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