Video filmed by Twitter user @Rvz_71 shows an ambulance and police near the facility, where black smoke is seen billowing into the sky.
Cornelius Fire Department and Oregon State Fire Marshal’s hazardous materials team reported to the scene as people were advised to avoid the area.
According to local news reports, ethanol fuel storage tanks exploded at Summit Natural Energy. The cause of the initial explosion is still unknown. Credit: @Rvz_71 via Storyful