A private school in Aliso Viejo has been closed through Wednesday following a "potentially threatening email" that prompted safety concerns, according to the Orange County Sheriff's Department.
The nature of the threat made to St. Mary's School was not immediately clear, but an investigation to determine the credibility of the threat was underway, Lt. Jeff Hallock with the department said.
“I can confirm we are investigating a threat that was made," Hallock told KTLA. "The school made decision to close and we will increase our presence.”
Investigators were also working to ascertain where the email came from.
According to a news release from the Sheriff's Department, the school's campus would be closed Tuesday and Wednesday as a "strictly precautionary measure."
The department was working with school administrators to ensure the safety of the school's students and faculty, the release stated.
“The safety of our students always has been and remains our top priority," said Sharon Taylor, the head of St. Mary’s School, according to the release.
No further information was available.
St. Mary's School educates about 800 students from preschool through middle school, according to the school's website.
KTLA's Justin Burton and Alberto Mendez contributed to this report.