Timothy George Simpkins has been identified as the shooter in Wednesday morning’s Timberview High School shooting in Arlington, Tx. The school is currently on lockdown, according to ABC News, as authorities investigate what happened. The identities of those who were injured have not been released to the public.

Two people have gunshot wounds, according to the police. Two others were shot, as well. Three victims were taken to the hospital, police said.

Out of the four victims, three were students. One was older. It is believed the adult may have been a teacher. Arlington Assistant Police Chief Kevin Kolbye said that there were four victims, with one person refusing treatment.

Police said the suspect is 18-year-old Timothy George Simpkins. Authorities revealed that Simpkins is driving a 2018 Silver Dodge Charger with license plate PFY-6260. He is considered both armed and dangerous.

Updating the situation on Twitter, Arlington Police wrote that they were currently on the scene and conducting a “methodical search” for Timothy George Simpkins. CBS News reports that authorities have since surrounded Timothy George Simpkins’ home near Ragland Road.

“We will be announcing a parent staging location soon once the location is identified,” the Police Department said. “Students will eventually be bused to that location after the school is completely secured.”

Given the “all clear,” parents will be allowed to pick up their children at the nearby Center for Performing Arts “reunification point” located at 1110 W. Debbie.

CBS 11 News reported that a mother of one of the students on lockdown heard from her child that “doors are locked and the police still haven’t found the shooter.”

“I haven’t been able to reach my son for 20 minutes,” she told reporters. “when we last spoke I heard the other kids crying and screaming in the classroom.”

An unconfirmed employee at the school told CBS 11 News that “shots were fired just down the hall from our classroom.”

Timothy George Simpkins reportedly opened fire on the second floor of Timberview High School at around 9:15 a.m.

A police helicopter arrived after the school shooting, with reports of dozens of officers sweeping the building. ABC News reported that the unknown suspect reported fired multiple shots before fleeing the scene. They believe that the suspect hit multiple people with gunfire, but that the number of victims was not immediately clear.

Officials announced that students will begin being safely escorted to buses soon. Authorities are hoping to give the “all clear” any minute now as buildings are evacuated, which may take some time. Timberview has roughly 2,000 current students. The shooter does not appear to still be on school premises.

Jeff Williams, the Mayor of Arlington, has yet to comment on the Timberview shooting.

The Timberview shooting comes just a couple days after a school shooting in Houston, Tx. nearby. A former student shot an administrator on Friday before surrendering to the police. The injured principal, Eric Espinoza, was luckily only grazed by the bullet in the back and recovered shortly after at the hospital.

Back in Feb. 2021, a report was released that detailed an increase in mass shootings in Texas during the pandemic, up 34 in 2020 from 30 the year before. Thirty seven people were killed in total, with 124 injured. A particularly violent shooting on Nov. 18, 2020 in Houston killed three people and injured two, while the June 12 San Antonio shooting injured eight. Nationally, mass shootings jumped up at an alarming 50% in 2020.

This is a developing story. We will continue to keep you updated as new information is released.