Heightened security at Mar Vista High School following potential social media threat
IMPERIAL BEACH (KUSI) – An unconfirmed social media threat involving Mar Vista High School led to a brief period of heightened security at the Imperial Beach campus, said a Sweetwater Union High School District spokesman.
The secondhand report of a potential online threat came to light about noon, he says. Students and staffers were secured in their classrooms and offices for roughly a half- hour, after which school and sheriff’s officials issued an all-clear.
No details about the purported threat have been released.