A massive explosion occurred at the Philadelphia Energy Solutions oil refinery in South Philadelphia a little after 4:00 a.m. on Friday morning.
The explosion could be heard for miles. Some neighbors said they initially thought it was thunder.
Fire crews say the fire started after a vat of butane toppled over.
Around 150 firefighters responded to the scene.
The Philadelphia Office of Emergency Management issued a shelter-in-place for nearby neighborhoods but it has since been lifted.
No injuries have been reported.
Our Khiree Stewart was on the scene.