Part of City Hall was evacuated Thursday after one of Mayor Antonio Villaraigosa’s staff members opened a letter that contained an unknown substance.
Eleven students were taken to area hospitals Wednesday after being sickened by an unknown odor in a classroom at a Garden Grove high school.
An ammonia leak inside a refrigeration unit at a distribution plant in Buena Park resulted in the temporary evacuation of a dozen workers.
A Hazmat incident prompted the evacuation of a building and forced street closures in La Habra Friday morning.
A big rig crash has sent 1,500 gallons of liquid asphalt onto the northbound 710 Freeway in Bell Gardens. More at cbsla.com and KCAL9 News.
Emergency crews and a hazardous materials team descended on an Albertson’s parking lot Wednesday after a radioactive material was found in a nearby trash bin.
The emergency room at Loma Linda Medical Center was evacuated Thursday due to a hazmat situation, officials said.
Officials said the number of missed inspections totals about half of the 2,600 that the Orange County Fire Authority is required to conduct.
A Fontana neighborhood was evacuation Sunday as a precaution against an exploded chemical that caused several people to become overcome and sick.
A worker at a hazardous materials sorting facility in Inglewood had to be hospitalized Monday when a canister released an unknown material that had dozens of people complaining of eye irritation.
Fire officials say a science experiment “gone awry” prompted the evacuation at East Valley High School in North Hollywood.
A balloon filled with flour prompted a school bus to be evacuated in Santa Clarita on Wednesday.
An envelope containing white powder was found at CBS Television City Wednesday, marking the third such occurrence since last November.
A hazmat team was called to the Northridge Fashion Center Sunday to investigate reports of a “strange odor.”