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A fire happened at the facility — an oil refinery — around 2 a.m. ET, according to ExxonMobil, which did not immediately confirm an explosion or say what led to the fire.
The fire happened in a unit that produces gasoline, and the plant’s emergency workers still were working before sunrise to extinguish the fire, ExxonMobil refinery manager Rohan Davis told reporters early Thursday.
The conditions of the four injured people were stable, said Davis, who said he could not comment on the extent of their injuries.
The cause of the fire wasn’t immediately known and will be investigated, Davis said.
The company is coordinating with authorities and is monitoring air quality with regulators, Davis said.
“All of those results so far have shown no impact to the community from an air quality perspective,” Davis said.
The refinery in Baytown is roughly a 25-mile drive east of downtown Houston.