WHY ARE EXTRA PATROLS BEING CALLED IN TO SEVERAL ENCINITAS SCHOOLS THIS MORNING?

I heard on the scanner that XP’s, extra patrols, were called in to multiple middle schools including Oakcrest. If someone knows please let me know so I can let parents know.

When I called the Sheriff’s Department she didn’t know but she said it means that extra patrols were called in….. to 3 or 4 middle schools. Why?