Four people were hospitalized Thursday morning after they were exposed to leaking gases at a refinery in Wilmington.
One of the workers was in serious condition. One worker was lowered from a raised platform to the ground by a stretcher and rope system. Firefighters reached the platform by using a ladder truck.
Firefighters responded to the refinery in the community west of Long Beach just after 6:30 a.m. after a report of leaking butane and hydrogen sulfide, the LAFD said.
Crews shut off the leak. No evacuations were ordered in nearby neighborhoods.
Get top local stories in Southern California delivered to you every morning. Sign up for NBC LA's News Headlines newsletter.
The four hospitalized patients were a 40-year-old man in serious condition and three other men, ages 26, 35, and 43, with moderate injuries.
The circumstances of the leak were under investigation.