Southern California air quality regulators are banning wood burning for the third day in a row because of excessive air pollution.
The South Coast Air Quality Management District is issuing a no-burn alert for Wednesday because a high concentration of fine particle air pollution is in the forecast.
The no-burn alert applies to the greater Los Angeles area, Orange County and the Inland Empire.
Regulators say the alert is necessary to protect public health because fine particles in wood smoke can get deep into the lungs and cause respiratory illnesses. The burning of manufactured fire logs made from wax or paper is also barred.
Wood burning also was prohibited in the region on Monday and Tuesday.
This story has been updated.