Officials determined the spill would require an emergency evacuation of the building.
SKY2’s Gordon Spencer reports a person walked in with the package or substance at approximately 5:05 p.m. Monday.
A chemical spill was reported Monday in an industrial area in Monrovia, prompting response from a hazardous-materials team and paramedics.
Five students at a Watts high school were injured Tuesday after an apparent school science experiment went awry, authorities said.
Three men suffered minor injuries Wednesday during a small fire and HazMat situation at a commercial building in San Fernando.
Officials Monday were investigating a Hazmat situation at an upscale, gated apartment complex in Costa Mesa.
Two people were hospitalized Tuesday for minor injuries linked to a suspected ammonia leak at a South Gate cheese factory, authorities said.
Residents were warned to stay away from the smoke when the blaze became a HazMat situation.
A tanker truck leak spilled some type of chemical onto a Carson roadway Wednesday afternoon, which prompted a hazardous materials situation.
Several Orange County Sheriff’s deputies became light-headed Tuesday night while serving a search warrant at a public storage unit.
The Huntington Beach City Hall was evacuated for a couple of hours Monday after an employee opened a suspicious package.
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.