In a statement released to the public, La Mesa Junior High School Principal Michele Krantz informed parents and students that campus staff had found a threat written on a small water tank on the back of campus Wednesday afternoon.

“The message was difficult to read as it had been scribbled out,” the letter dated April 24 at 3:45 p.m. read. “The threat did mention April 25.”

The letter says that La Mesa faculty immediately contacted law enforcement, who then began to investigate the issue.

“At this time, we do not have specific details to share other than the fact that the threat was indirect and did not mention any specific person,” Krantz said in the letter. “Law enforcement, in an abundance of caution, have arranged for an expanded presence in the area (for Thursday).”

An undisclosed number of school resource deputies are on La Mesa’s campus today, and the school remains open, according to Lt. Doug Morhoffm, of the Santa Clarita Valley Sheriff’s Station.

“There have been no arrests made, and COBRA detectives are investigating,” said Shirley Miller, a spokeswoman with the SCV Sheriff’s Station. COBRA detectives are generally the team of law enforcement personnel who handle juvenile-related crimes. “They have extra personnel over there today.”

Miller added that if there was a critical situation at hand, the SCV Sheriff’s Station would be advising the public or putting out a notice.

“At this point there is no lockdown,” Miller said. “They are finishing up their investigation and once they are done with their investigation, then we will be able to update everybody.”

A text-a-tip hotline has been made available at 661-524-5166 to anyone with information about the incident, and parents can also contact the school directly at 661-250-0022.

“If you or your student have any information regarding this matter, please consider contacting La Mesa administration or the local authorities,” the letter said. “Safety is always our top priority.”