An Orange County sheriff’s bomb-sniffing dog and Fountain Valley police investigate the scene at Fountain Valley High School. A threat of a bombing and mass shooting prompted officials to cancel classes. (Allen J. Schaben / Los Angeles Times)
A Fountain Valley police officer checks out a hallway at Fountain Valley High School. (Allen J. Schaben / Los Angeles Times)
An Orange County sheriff’s deputy and bomb-sniffing dog take a break from looking for possible hidden explosives at Fountain Valley High School. (Allen J. Schaben / Los Angeles Times)
An Orange County sheriff’s deputy and Fountain Valley police officer check out Fountain Valley High School. (Allen J. Schaben / Los Angeles Times)
No explosives were found at Fountain Valley High. (Allen J. Schaben / Los Angeles Times)
