A small town in rural Texas is reeling after a gunman opened fire at an elementary school on Tuesday, killing 19 children.
Two teachers were also among those killed at Robb Elementary School in Uvalde, according to authorities.
Prior to opening fire at the school, the suspect also allegedly shot his grandmother, officials said.
The alleged gunman -- identified by authorities as 18-year-old Salvador Ramos, a student at Uvalde High School -- is dead.
Latest headlines:
- Texas DPS conducting review of law enforcement actions during shooting
- Several 911 calls were made from inside classroom as police waited outside
- Officers did not breach classroom for 35 minutes while shooter was inside
- US Marshals say they never arrested or handcuffed anyone outside school. Here's how the news is developing. All times Eastern. May 27, 4:45 pmTexas official says gunman had 1,657 rounds of ammunition
The gunman had purchased a total of 1,657 rounds of ammunition, 315 of which were inside the school, Steven McCraw, director of Texas Department of Public Safety, said Friday.
McCraw said 142 of those rounds were spent cartridges and 173 were live rounds.
Officials found 922 rounds outside of the school, but on school property. Of those rounds, 22 were spent cartridges and 900 were live rounds. Another 422 live rounds were found at the crash site, McCraw said.
The suspect had a total of 60 30-round magazines, 58 of which were at the school. He had fired nearly 200 rounds, most of them inside the school, said McCraw.
5 of 17 injured in shooting remain hospitalized :
Five of the 17 people injured in the elementary school shooting remain in the hospital on Friday, according to officials.
Two children and one adult are being treated at University Hospital in San Antonio, two of whom are in serious condition, and two adults are at Brooke Army Medical Center, both in fair condition.
A 10-year-old girl was discharged from University Health in San Antonio.
Eight children and three adults were treated and discharged from Udalve Medical Center earlier this week.
-ABC News' Jennifer Watts.
May 27, 3:13 pmTexas DPS conducting review of law enforcement actions during shooting
As part of its ongoing investigation into Tuesday's shooting, the Texas Department of Public Safety is conducting a review of law enforcement actions.
This comes after the visibly shaken Steven McCraw, the director of the Texas Department of Public Safety, revealed a cascading series of police failures before and during one of the deadliest school shootings in the nation’s history.
-ABC News' Aaron Katersky