The Broward County Sheriff’s Office said 17 people died after a shooter attacked a Parkland, Florida high school on Wednesday.
The suspect, a male wearing a burgundy shirt, had been taken into custody by authorities before 4 p.m. EST.
Broward County Sheriff Scott Israel identified the shooter as Nikolaus Cruz, 19, a former student of the school who had been expelled for disciplinary reasons.
Israel said authorities have begun dissecting Cruz’s background and social media history, describing some of the initial findings as “very, very disturbing.”
Cruz’s arsenal in the shooting, Israel said, including “countless magazines” of ammunition and at least one AR-15 rifle.
Twelve of the deceased, Israel said, were killed inside the school; three died outside of the school building; and two died at Broward Health North, a nearby hospital, authorities said.
Seventeen patients, including the gunman, were transported to Broward health centers, medical officials said.
Eight victims were taken to Broward Health North, as well as the gunman. Two of the eight victims died, while three remain in critical condition. The remaining three victims are in stable condition, officials said.
All of the victims at Broward Health North suffered gunshot wounds, officials said.
Seven victims were taken to Broward Health General, and one was taken to Broward Health Coral Springs, officials said.
Robert Runcie, Broward County Public Schools superintendent, said earlier that there was no evidence of multiple shooters.
Deputies in Broward County, Florida, responded to reports of an active shooter at Marjory Stoneman Douglas High School on Wednesday afternoon.
Florida local news station WSVN 7 initially reported at least 20 injured from the shooting, though such figures can vary significantly in the immediate aftermath of a shooting.
The school is located less than 50 miles north of Miami on the East coast of the state.
A Broward Sheriff’s Office spokeswoman confirmed to CNBC around 3 p.m. EST that police had received reports of victims of the scene.
The school had been placed on a “code red” lockdown, the spokeswoman said.
President Donald Trump tweeted his sympathies to the victims of the shooting. “No child, teacher or anyone else should ever feel unsafe in an American school,” Trump said.
Some students, claiming to be trapped in the school under lockdown, posted photos of their situation on social media.