CHALMETTE, La. (AP) -- Fire broke out at two oil refineries less than two miles apart early Tuesday.
The fires at the ExxonMobil Refinery in Chalmette and the Murphy Oil Refinery, about a mile and a half away, appear to be accidental, Sheriff Jack Stephens said.
Neither fire appeared to be related and no significant injuries were reported, he said.
Two trailer parks housing about 100 people near the Murphy facility were evacuated as a precaution.
A spokeswoman for the ExxonMobil facility said the fire appears to have been caused by a pump failure. Stephens said the Murphy refinery's fire apparently ignited in a system that breaks down crude oil into heavy fuel.
The fires were under investigation.
One firefighter suffered a minor injury, officials said.