Update:
SACRAMENTO COUNTY, Calif. -- Jesuit High School Principal Michael Wood wrote a letter to families following the school threat early Tuesday afternoon.
"We take all threats seriously and did not hesitate to enact the school’s emergency procedures," Wood said in the letter.
The high school started classes just one week ago. Parents met at the school Tuesday evening for a pre-planned "Back to School" meeting.
“Everything seems to be fine," said Carmela Lanting, mother to an 11th grader at the high school. "No harm came upon our kids. I’m very pleased with the school handled it.”
Earlier in the day, some parents stood outside both schools on lockdown hoping to pick up their teenagers.
Michael Trueblood has two sons at Rio Americano High School.
“It’s horrifying, you know you don’t want to get those calls from your kids," Trueblood said.
With a growing issued of school threat and shootings, he is signing up his sons for active shooter first aid classes. He has also considered purchasing bullet-proof backpacks.
Update: 3:15 p.m.:
An Elk Grove Unified student ended up in police custody after posting what authorities are calling a threat on social media. The threat was reported to the Elk Grove Unified School District's Department of Safety and Security Tuesday afternoon.
The student was quickly identified, according to EGUSD.
"Preliminary information indicated that the student had made the threat toward their previous non-EGUSD school," said the Elk Grove Unified School District in a statement. "Within minutes, the authorities had the student who had posted the social media threat in custody."
Update 2:10 p.m.:
A student from Elk Grove is in police custody after threats lead to multiple to several Sacramento area schools to either go on lockdown or shelter in place, according to the Sacramento County Sheriff Department.
The threats were posted to social media, however, law enforcement wouldn't say which platform the threats were posted to. It was described that the threat was "shooting related."
Investigators are not looking for any other suspects.
Update 1:45 p.m.:
As of 1:45 p.m., all schools are resuming normal activities and safety measures have been lifted.
Original story:
Four Sacramento area schools are either on lockdown or sheltering in place after a threat was discovered on social media, according to authorities.
Rio Americano High School and Jesuit High School are on lockdown while El Camino Fundamental High School and Del Dayo Elementary School are being told by law enforcement to shelter in place.
“Additional deputies responded to both schools, cleared the school grounds just to make sure that the subject who they believe was the author of the post was not on either campus," said Sgt. Tess Deterding with the Sacramento County Sheriff's Department.
According to the Sacramento County Sheriff's Department, the threat alluded to a school shooting. Investigators believe the person behind the threat is a former student, but that suspect is not believed to be on campus.
The threat and lockdown come just one day after a panel discussion was held to allow students to voice their concerns about the racial climate of the school after a hate-filled post on social media aimed at African-Americans who attend Rio Americano High School was discovered.
Parents can find updates on the San Juan Unified School District. The school district also provides instructions on what to do in a situation like this.
Students who see or hear anything they find threatening can submit a tip through the schools Tell Someone System.
This is a developing story.