A letter with a drawing of a mushroom cloud, the word “boom” and an ominous threat of a tragic incident put a San Diego School on high alert Thursday.
Two West Hills High School students have been taken into custody for allegedly writing the threat, according to San Diego County Sheriff's investigators.
The arrests were made after a social sciences teacher found the threatening note on a counter inside a classroom shortly after 3 p.m. on Thursday, Grossmont Union High School District spokesperson Catherine Martin said.
"With a veiled threat about a bomb on campus, it had a drawing of a mushroom cloud and said, "boom," Martin said.
The note warned everyone should be careful because there may be a "tragic incident" at 8:03 a.m. Friday. Sheriff's deputies searched the campus for any explosive devices, but none were found.
Parents were alerted to the threat and extra security was being put in place for school on Friday.
“We take every type of threat like this very seriously with an abundance of caution." Martin said.
But that all changed after investigators announced that two male students had been taken into custody later in the night.
It's unclear what led investigators to the suspects. Detectives said the threat was not credible and parents should feel safe bringing their kids to West Hills High on Friday.