L.A. County Fire Department personnel were on the scene following reports of the incident near the 5 Freeway just after 11 p.m.
A HazMat team Wednesday confirmed a possible ammonia leak in South El Monte was a false alarm.
Residents in an area of San Bernardino County Wednesday were ordered to shelter in place after a plume of gaseous smoke was reported.
Los Angeles sheriff’s deputies were called to the scene in the 4100 block of West Venice Boulevard near Crenshaw, where a Metro bus had been pulled over and taped off shortly after 4 p.m. Tuesday.
A Riverside County school was closed and residents were evacuated Monday after an unknown gas leak was reported.
Hazardous material and fire crews are at the Ronald Reagan Library after a worker opened an envelope containing a white powder, but a spokeswoman says there is no threat to the public.
Authorities have evacuated hundreds of people from a Pomona office building and taken eight to the hospital after a chemical made people cough and their eyes water.
Operation Maritime Chokehold is a $30 million program made possible through a grant from Homeland Security.
Classes at Alhambra High School were back in session Tuesday after reports of a gasoline smell forced students to evacuate, authorities said.
The Alhambra Police Department lobby was closed for a short time Tuesday after a person brought something inside the building that contained a white, powdery substance.
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.