Ventura County fire crews received a report of a hazardous material emergency at a warehouse in the 100 block of Cochran Street near Madera Road about 6:15 a.m. Inside the building, 75-gallon drums filled with nitric acid were burning, sending up thick, dark smoke, said Capt. Anthony Romero.
People in neighboring businesses and homes were told to stay indoors as dozens of firefighters attacked the blaze from the outside of the building to keep the fire from spreading. The fire activated the sprinkler system inside the warehouse, Romero said.
At 9:45 a.m., fire officials said that the blaze had been contained and that firefighters would remain at the scene to deal with hazardous materials. Evacuation orders were lifted two hours later, and local businesses were allowed to reopen, although officials said a slight irritant smell may linger for the rest of the day.