The incident was reported about 7:30 p.m.
A bomb threat at San Clemente High School prompted authorities to shelter students in place while explosives-sniffing dogs swept the campus Wednesday afternoon.
A 17-year-old boy was arrested Monday for making a false bomb threat against a Chino school, police said.
Two West Covina campuses were evacuated Friday after a high school received a telephonic bomb threat.
Beverly Hills High School was evacuated Wednesday after a report of a bomb threat.
Beverly Hills High School was evacuated Monday after an alleged bomb threat.
A Garden Grove high school that was damaged in a fire over the weekend was evacuated Tuesday afternoon when a note indicating a bomb threat was found on campus.
Hours after a phony threat led to classes being canceled at Fountain Valley High School Wednesday, another false bomb claim was made at a Costa Mesa elementary school.
Police Thursday responded to the Los Angeles International Airport after receiving a bomb threat.
The Santa Ana courthouse reopened Wednesday morning following a bomb threat, authorities said.
A Planned Parenthood Center in Pomona was evacuated Friday morning due to an apparent bomb threat.
A man was arrested Wednesday for allegedly making a phony bomb threat at a Riverside high school.
A Long Beach Walmart store has been evacuated as authorities investigate a bomb threat.
Classes were canceled Friday at Temple City High School after authorities received a bomb threat.
A portion of the Tom Bradley International Terminal at the Los Angeles International Airport was evacuated Wednesday after a suspicious package was found.