02/11/2013 04:59 pm ET Updated Feb 11, 2013

Twin Peaks Middle School Student In San Diego, Calif. Allegedly Threatened Mass Shooting In Email (VIDEO)

A 12-year-old Twin Peaks Middle School student in Poway, Calif. was taken into custody Saturday after a school administrator received an email threatening a mass shooting. Local police said the threat, which included references to firearms and 3,000 rounds of ammunition, indicated 23 students and a school teacher would be shot on Feb. 11, according to San Diego 6.

Working with school officials and a multi-agency technology crimes task force, the San Diego County Sheriff's Department found the source of the email, identifying a seventh grade student as a possible suspect. After deputies searched his residence, recovering several computers, five rifles, three shotguns and three handguns, the 12-year-old was taken into custody for making a terrorist threat.

According to Captain Bill Donahue, the weapons were locked up at the time and authorities were told the student did not have access, Fox 5 San Diego reports.

The middle-schooler has since been admitted to a local hospital for treatment, Capt. Donahue said during a press conference Sunday, according to Poway Patch. Parents of Twin Peaks students were informed of the potential threat by email Sunday and crisis counselors were dispatched to the school Monday to help students cope with the threat.

The mass shooting email is the latest in a string of school threats that have become increasingly common following the Dec. 14 shooting at Sandy Hook Elementary School in Newtown, Conn.

"Obviously, this situation is both saddening and disturbing," Poway Unified School District Superintendent John Collins said in a statement, NBC 7 San Diego reports. "However, it is critical that all touched by this threat understand that the system worked."

The San Diego district attorney's office will decide whether or not to bring criminal charges against the minor, who is potentially facing a felony charge for making a terrorist threat, the Los Angeles Times reports.