Fourteen students and a teacher are dead after a shooting at Robb Elementary School in Uvalde, Texas, according to Gov. Greg Abbott.
The 18-year-old suspect, a student at Uvalde High School, is also dead, he said.
"He shot and killed horrifically and incomprehensibly 14 students and killed a teacher," Abbott said during an unrelated press briefing.
The suspect also allegedly shot his grandmother before entering the school and again opening fire, Abbott said. He did not say anything further about her condition.
Abbott said the shooter had a handgun and also possibly a rifle.
"When parents drop their kids off at school, they have every expectation to know that they're going to be able to pick their child up when that school day ends. And there are families who are in mourning right now," Abbott said. "The state of Texas is in mourning with them for the reality that these parents are not going to be able to pick up their children."
Two responding police officers were among those injured, Abbott said. They are expected to survive, he said.
Uvalde Memorial Hospital had said 15 students were being treated in the hospital's emergency department in the wake of the incident. Two patients were transferred to San Antonio for treatment, while a third was pending transfer, the hospital said. A 45-year-old was also hospitalized after getting grazed by a bullet, the hospital said.
University Health in San Antonio said it had two patients from the shooting incident -- a child and an adult. The hospital said the adult -- a 66-year-old woman -- is in critical condition. It did not have an update yet on the condition of the child.
The Children's Hospital of San Antonio said it has also received patients from the shooting.
Uvalde Mayor Don McLaughlin did not confirm casualties, but told ABC News in a text message that "this is a very bad situation." He said the office is trying to contact parents before releasing any information.
Earlier, the Uvalde Consolidated Independent School District had said a shooter was located at Robb Elementary School and asked people to stay away from the area.
"There is an active shooter at Robb Elementary," the school district said on Twitter. "Law enforcement is on site. Your cooperation is needed at this time by not visiting the campus. As soon as more information is gathered it will be shared."
A school official initially told ABC News that the shooting took place off campus, and that Robb Elementary School was under lockdown.
The school informed parents shortly after 2 p.m. local time that students had been transported to the Sgt. Willie Deleon Civic Center, the reunification site, and could be picked up.
Uvalde, Texas, is located about 90 minutes west of San Antonio.
The Bexar County Sheriff's Office and San Antonio Police Department are sending aid, and the FBI is responding.
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The Houston Field Division of the Bureau of Alcohol, Tobacco, Firearms and Explosives also said it is assisting in the investigation.
Department of Homeland Security Secretary Alejandro Mayorkas has been briefed on the situation and the agency "is actively coordinating with federal, state, and local partners," a spokesperson said. Customs and Border Protection officials in the area also responded to the scene.
The National Counterterrorism Operations Center believes there is "no known terrorism nexus" at this time, according to a law enforcement bulletin obtained by ABC News.
ABC News' Pierre Thomas, Luke Barr, Aaron Katersky, Nicholas Kerr and Mireya Villarreal contributed to this report.
This is a developing story. Check back for updates.
14 students, 1 teacher dead after shooting at Texas elementary school: Gov. Abbott originally appeared on abcnews.go.com