About 60,000 people have been evacuated from the area surrounding Port Neches in Texas after a series of huge explosions at a chemical plant.
Footage shows a flash of light before the plant was engulfed by flames. One video shows the door of a nearby house being blown off its hinges.
Three employees were injured in the initial explosion.
The first blast at 01:00 local time (07:00 GMT) on Wednesday was followed by a series of secondary explosions.
Source: BBC News