An 18-year-old man opened fire at an elementary school in Uvalde, Texas, on May 24, killing 19 students and two teachers, officials said.

The shooting took place at Robb Elementary School. The gunman, who officials have identified as Salvador Ramos, was on the school premises for more than an hour before law enforcement forcibly entered a classroom and killed him, officials said.

Ramos also shot his grandmother before going to the school.

Uvalde County, which is about 85 miles west of San Antonio, had a population of about 25,000 as of the 2020 Census.

This is the second-deadliest school shooting since 2012, when 26 children and adults were killed at Sandy Hook Elementary School.

Celia Correa Sauceda, right, hugs her friend Stacey Mazuca after they and other mariachi musicians from San Antonio performed during a memorial in Uvalde on Wednesday, June 1. Sauceda, who plays violin, is an elementary teacher in San Antonio. She said she was in Uvalde to be a voice. "We cannot forget what happened, and it needs to stop," Sauceda said.
Celia Correa Sauceda, right, hugs her friend Stacey Mazuca after they and other mariachi musicians from San Antonio performed during a memorial in Uvalde on Wednesday, June 1. Sauceda, who plays violin, is an elementary teacher in San Antonio. She said she was in Uvalde to be a voice. "We cannot forget what happened, and it needs to stop," Sauceda said.
Matthew Busch for CNN
Mateo López sings during a mariachi performance at a Uvalde memorial on June 1.
Mateo López sings during a mariachi performance at a Uvalde memorial on June 1.
Matthew Busch for CNN
Pallbearers carry Amerie Jo Garza's casket into the Sacred Heart Catholic Church in Uvalde on Tuesday, May 31.
Pallbearers carry Amerie Jo Garza's casket into the Sacred Heart Catholic Church in Uvalde on Tuesday, May 31.
Matthew Busch for CNN
Jose Mata, brother of shooting victim Xavier Lopez, carries a wooden cross decorated with a baseball bat to place it at Xavier's memorial outside his home in Uvalde on May 31.
Jose Mata, brother of shooting victim Xavier Lopez, carries a wooden cross decorated with a baseball bat to place it at Xavier's memorial outside his home in Uvalde on May 31.
Jae C. Hong/AP
President Joe Biden looks back at the crowd gathered outside of the Sacred Heart Catholic Church after attending Mass in Uvalde on Sunday, May 29. People in the crowd shouted, "Do something!" And as Biden looked back at them he said, "We will."
President Joe Biden looks back at the crowd gathered outside of the Sacred Heart Catholic Church after attending Mass in Uvalde on Sunday, May 29. People in the crowd shouted, "Do something!" And as Biden looked back at them he said, "We will."
Matthew Busch for CNN
A cutout photograph of one of the victims is taken onto school grounds Saturday, May 28, in preparation for <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2022%2F05%2F29%2Fpolitics%2Fjoe-biden-uvalde-texas-visit%2Findex.html" target="_blank">Biden's visit</a> the next day.
A cutout photograph of one of the victims is taken onto school grounds Saturday, May 28, in preparation for Biden's visit the next day.
Matthew Busch for CNN
Mourners gather in the main plaza in Uvalde on May 28.
Mourners gather in the main plaza in Uvalde on May 28.
Matthew Busch for CNN
A choir from The Light of the World Church sings songs in Uvalde on Friday, May 27, to support families who lost loved ones in the shooting.
A choir from The Light of the World Church sings songs in Uvalde on Friday, May 27, to support families who lost loved ones in the shooting.
Matthew Busch for CNN
The Light of the World Church offers prayers for the families impacted by the shooting.
The Light of the World Church offers prayers for the families impacted by the shooting.
Matthew Busch for CNN
Vanessa Palacios, left, and Melissa García write the victims' names on their storefront, Cut Loose Hair Emporium, on May 27.
Vanessa Palacios, left, and Melissa García write the victims' names on their storefront, Cut Loose Hair Emporium, on May 27.
Matthew Busch for CNN
Steven McCraw, the director of the Texas Department of Public Safety, points to a map of <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2022%2F05%2F27%2Fus%2Fuvalde-texas-elementary-school-shooting-friday%2Findex.html" target="_blank">the shooter's movements</a> during a news conference on May 27. In all, 80 minutes passed between when officers were first called to the school at 11:30 a.m. to when a tactical team entered locked classrooms and killed the gunman at 12:50 p.m., McCraw said.
Steven McCraw, the director of the Texas Department of Public Safety, points to a map of the shooter's movements during a news conference on May 27. In all, 80 minutes passed between when officers were first called to the school at 11:30 a.m. to when a tactical team entered locked classrooms and killed the gunman at 12:50 p.m., McCraw said.
Matthew Busch for CNN
The friends and family of Maranda Mathis, one of <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2022%2F05%2F25%2Fus%2Fvictims-uvalde-texas-school-shooting%2Findex.html" target="_blank">the young victims of the school shooting,</a> grieve her loss in front of a cross bearing her name on May 26. "These children should be remembered for all the right reasons," a family member said.
The friends and family of Maranda Mathis, one of the young victims of the school shooting, grieve her loss in front of a cross bearing her name on May 26. "These children should be remembered for all the right reasons," a family member said.
Matthew Busch for CNN
Tyler Garcia raises up a sign that says "#UvaldeStrong" during a car wash and food sale that was raising money for the families of those who lost loved ones in the shooting.
Tyler Garcia raises up a sign that says "#UvaldeStrong" during a car wash and food sale that was raising money for the families of those who lost loved ones in the shooting.
Matthew Busch for CNN
Congregants at St. Philip's Episcopal Church light candles in Uvalde to remember the shooting victims on May 26.
Congregants at St. Philip's Episcopal Church light candles in Uvalde to remember the shooting victims on May 26.
Matthew Busch for CNN
Copies of the Uvalde Leader-News sit on stands at a market on May 26.
Copies of the Uvalde Leader-News sit on stands at a market on May 26.
Jae C. Hong/AP
Crosses bear the names of shooting victims on May 26.
Crosses bear the names of shooting victims on May 26.
Matthew Busch for CNN
People in Uvalde light candles during a memorial for the shooting victims on May 25.
People in Uvalde light candles during a memorial for the shooting victims on May 25.
Matthew Busch for CNN
A prayer vigil is held in Uvalde on May 25.
A prayer vigil is held in Uvalde on May 25.
Jae C. Hong/AP
An officer with the Texas Highway Patrol prays with a community member before taking his flowers to the growing memorial in front of Robb Elementary School.
An officer with the Texas Highway Patrol prays with a community member before taking his flowers to the growing memorial in front of Robb Elementary School.
Matthew Busch for CNN
From left, Michael Cavasos, Brenda Perez and Eduardo Galindo are seen in the foreground as they wait in line to donate blood in Uvalde on May 25. Galindo, who lives in Uvalde, said: "When it hits you in your hometown, you wake up and say, 'Wow.' ... We have to be here and show support for these families right now." Approximately 200 people donated blood to South Texas Blood and Tissue, who would be delivering the units to surrounding area hospitals.
From left, Michael Cavasos, Brenda Perez and Eduardo Galindo are seen in the foreground as they wait in line to donate blood in Uvalde on May 25. Galindo, who lives in Uvalde, said: "When it hits you in your hometown, you wake up and say, 'Wow.' ... We have to be here and show support for these families right now." Approximately 200 people donated blood to South Texas Blood and Tissue, who would be delivering the units to surrounding area hospitals.
Matthew Busch for CNN
People attend Mass at the Sacred Heart Catholic Church in Uvalde on May 25.
People attend Mass at the Sacred Heart Catholic Church in Uvalde on May 25.
Allison Dinner/AFP/Getty Images
Flowers are seen at the memorial in front of the school.
Flowers are seen at the memorial in front of the school.
Matthew Busch for CNN
Texas gubernatorial nominee Beto O'Rourke, bottom right, <a href="index.php?page=&url=https%3A%2F%2Fwww.cnn.com%2F2022%2F05%2F25%2Fpolitics%2Fbeto-orourke-uvalde-greg-abbott%2Findex.html" target="_blank">confronted Gov. Greg Abbott and other officials</a> during a news conference about the shooting on May 25. "The time to stop the next shooting is right now and you are doing nothing," O'Rourke told Abbott. The two will face off in November's election.
Texas gubernatorial nominee Beto O'Rourke, bottom right, confronted Gov. Greg Abbott and other officials during a news conference about the shooting on May 25. "The time to stop the next shooting is right now and you are doing nothing," O'Rourke told Abbott. The two will face off in November's election.
Veronica G. Cardenas/Reuters
Law enforcement vehicles are lined up outside the school on May 25.
Law enforcement vehicles are lined up outside the school on May 25.
Jordan Vonderhaar/Getty Images
People pray outside the SSGT Willie de Leon Civic Center in Uvalde on May 24. The civic center is where students were transported after the shooting.
People pray outside the SSGT Willie de Leon Civic Center in Uvalde on May 24. The civic center is where students were transported after the shooting.
Nuri Vallbona/Reuters
Kladys Castellón prays during a vigil that was held in Uvalde on May 24.
Kladys Castellón prays during a vigil that was held in Uvalde on May 24.
Billy Calzada/AP
Law enforcement officials work the scene after the shooting on May 24.
Law enforcement officials work the scene after the shooting on May 24.
Jordan Vonderhaar/Getty Images
People comfort each other outside the civic center in Uvalde.
People comfort each other outside the civic center in Uvalde.
Dario Lopez-Mills/AP
Students run to safety after law enforcement officers helped them escape from a window at the school.
Students run to safety after law enforcement officers helped them escape from a window at the school.
Pete Luna/Uvalde Leader-News
Law enforcement personnel run near the scene of the shooting on May 24. US Customs and Border Protection, which is the largest law enforcement agency in the area, assisted with the response.
Law enforcement personnel run near the scene of the shooting on May 24. US Customs and Border Protection, which is the largest law enforcement agency in the area, assisted with the response.
Marco Bello/Reuters
People react outside the Uvalde civic center on May 24.
People react outside the Uvalde civic center on May 24.
Marco Bello/Reuters
A Texas state trooper walks outside the school on May 24.
A Texas state trooper walks outside the school on May 24.
Eric Thayer/Bloomberg/Getty Images
A woman reacts outside of the civic center in Uvalde.
A woman reacts outside of the civic center in Uvalde.
Marco Bello/Reuters
A child gets on a school bus under the watch of law enforcement on May 24. Robb Elementary teaches second through fourth grades and had 535 students in the 2020-21 school year, according to state data. About 90% of students are Hispanic and about 81% are economically disadvantaged, the data shows.
A child gets on a school bus under the watch of law enforcement on May 24. Robb Elementary teaches second through fourth grades and had 535 students in the 2020-21 school year, according to state data. About 90% of students are Hispanic and about 81% are economically disadvantaged, the data shows.
Marco Bello/Reuters
People react outside the civic center in Uvalde. This marks at least the 30th shooting at a K-12 school in 2022.
People react outside the civic center in Uvalde. This marks at least the 30th shooting at a K-12 school in 2022.
Marco Bello/Reuters
Law enforcement officials and other first responders gather outside the school following the shooting.
Law enforcement officials and other first responders gather outside the school following the shooting.
Dario Lopez-Mills/AP
A woman cries and hugs a young girl while on the phone outside the civic center in Uvalde.
A woman cries and hugs a young girl while on the phone outside the civic center in Uvalde.
Allison Dinner/AFP/Getty Images
Another child gets on a bus to leave the school.
Another child gets on a bus to leave the school.
Marco Bello/Reuters
A woman cries as she leaves the civic center.
A woman cries as she leaves the civic center.
William Luther/San Antonio Express-News/Zuma
Law enforcement officials stand outside the school following the shooting. The FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives have been assisting local police with the investigation.
Law enforcement officials stand outside the school following the shooting. The FBI and the Bureau of Alcohol, Tobacco, Firearms and Explosives have been assisting local police with the investigation.
Dario Lopez-Mills/AP
People sit on the curb outside of the school as state troopers guard the area on May 24.
People sit on the curb outside of the school as state troopers guard the area on May 24.
Allison Dinner/AFP/Getty Images
Police walk near the school following the shooting.
Police walk near the school following the shooting.
Dario Lopez-Mills/AP
A woman and a child leave the Uvalde civic center on May 24.
A woman and a child leave the Uvalde civic center on May 24.
William Luther/San Antonio Express-News/Zuma