Police were investigating reports Tuesday of a suspicious male with a backpack on the Los Angeles Air Force Base in El Segundo, authorities said.
LA Valley College was on lockdown Monday for several hours after someone called in a threat to the campus.
Dana Hills High School students were released after a four-hour lock down Thursday after an empty rifle or shotgun carrying case was reportedly found in a campus parking lot.
One person was injured Friday in a shooting in Sylmar.
A suspect possibly carrying a sawed-off shotgun near a Tustin apartment complex Thursday was arrested after an officer-involved shooting.
KCAL9′s Kevin Takumi reports police responded to Day Creek Intermediate School, located in the 12000 block of Coyote Drive in Etiwanda, on Tuesday afternoon.
A suspect was arrested Friday after leading authorities on a pursuit and fleeing the vehicle in Van Nuys.
Authorities Thursday were investigating a shooting inside a Ventura County hotel.
The incident started at 3 p.m. when many students have already been dismissed.
San Clemente High School was locked down for roughly four hours Thursday after an apparent threat was found on YikYak, an anonymous downloadable smartphone application.
Students were being kept inside classrooms at Toland Way Elementary after a burglary took place across the street from the school, according to police.
A student whose threatening note prompted a lockdown at Moorpark High School has apparently killed himself by stepping in front of a train.
Authorities say police activity just outside an elementary school in Azusa resulted in the school being placed on lockdown on Friday afternoon.
Authorities say a 14-year-old boy has been detained after allegedly pointing a replica handgun at another student on a school campus in Thermal.
Authorities have filed a terrorizing charge against a Southland student who allegedly made threats that led to the brief lockdown of a college campus in North Dakota.