NEW YORK: Four people were injured when a fire erupted on Thursday at an Exxon Mobil Corp complex in Baytown, Texas, one of the largest refining and petrochemical facilities in the United States.

There were no fatalities and those injured were in stable condition, while other personnel were accounted for, Exxon said. The company said in a statement that the fire had been put out by roughly 10 a.m. EST (1500 GMT), several hours after the blaze erupted.

An Exxon official told a news conference that the fire had affected a unit that produces gasoline. People familiar with plant operations told Reuters that the fire occurred in a hydrotreater unit at the refinery that had been shut on Wednesday due to a bypass line leak.

Exxon fights fire at Baytown, Texas, oil complex; six injured

The Baytown plant houses a chemical plant, an olefins plant and the country’s fourth-biggest oil refinery, with capacity to process 560,500 barrels per day of crude. It is unclear whether any units will be shut for an extended length of time.