Fire crews were called to a blaze at an oil refinery in Carson on Thursday afternoon.
Smoke could be seen billowing from the Phillips 66 refinery facility at Sepulveda Boulevard and Alameda Street around 5 p.m.
Firefighters declared the flames extinguished shortly before 7:20 p.m., Los Angeles County Fire Department officials said.
No injuries were reported, officials said. Air quality measurements taken Thursday afternoon were normal, but authorities planned to continue to monitor readings.
The refinery was also the scene of a massive fire on March 15.
It was unclear what initially sparked the blaze.
REFINERY FIRE I #LACoFD assisting @Phillips66 resources on a mechanical equipment fire that has been extinguished & contained. No injuries reported. Air quality is being continuously monitored with all reports normal. This is the #PhillipsIC in #Carson pic.twitter.com/KttqTH75bQ
— L.A. County Fire Department (@LACoFDPIO) May 3, 2019
***Final Update*** #Carson Phillips 66 Refinery Fire is extinguished. Fire Department is assessing the damage, decontaminating the area, and determining cause.
AQMD, County Health and Hazmat state there were no air quality concerns. No injuries reported. pic.twitter.com/z5vbAgY4V3
— LASD Carson Station (@CarsonLASD) May 3, 2019