What We Know So Far About The Santa Fe School Shooting

(CNN) -- Nine students and a teacher were killed Friday morning in a shooting at Santa Fe High School in the southeastern Texas city of Santa Fe. It's the 22nd school shooting in the US in 2018. As of 2:30 p.m. ET, this is what we know:

A male suspect, believed to be a 17-year-old student in his teens, is in custody.
He was injured, according to a law enforcement official.
Investigators have not found the suspect in the system for purchasing hand guns.
A second person, 18 and also believed to be a student, has been detained as well, officials said.

Sheriff's officials received reports of an active shooting at the school just before 8 a.m.
An armed person walked into an art class at the school and began firing what looked like a shotgun, a witness told CNN affiliate KTRK.
Pipe bombs and pressure cookers were found at the scene, according to a law enforcement official.
Investigators are searching a trailer nearby where it is believed explosive devices were assembled, according to a law enforcement source, who says a pressure cooker has been found.
Explosive devices are also found in surrounding areas.

President Trump addressed the shooting at an unrelated White House event, saying: "This has been going on too long in our country."
Secretary of Education Betsy DeVos said schools must be "safe and nurturing environments" and "we simply cannot allow this trend to continue."
Parents and students of Parkland offered condolences and reiterated that something needs to change.
Sen. John Cornyn of Texas says he plans to travel to Santa Fe this afternoon: "Our thoughts and prayers are with the families of those injured and killed."
The Democratic mayor of Dallas slammed Congress: "Spare us your thoughts and prayers and do your job."
"History will not look kindly upon those elected officials who failed to act in the face of repeated mass murders of our children," Mayor Mike Rawlings said.
Texas Gov. Greg Abbott has directed flags be lowered to half-staff today through Tuesday.

Santa Fe High School is slated to hold their Class of 2018 graduation ceremony Sunday at the High School auditorium, according to the Santa Fe Independent School District Website.
The high school has about 1,400 students, according to GreatSchools.org.
Santa Fe is a city of about 13,000 people roughly 20 miles northwest of Galveston and 30 miles southeast of Houston.