Feedback

Cause of Texas fertilizer blast remains a mystery

 

On Thursday investigators said they still don’t know what caused the initial fire, but they have ruled out smoking, weather and spontaneous combustion. NBC’s Brian Williams reports.

Your Playlist Expand Collapse

Full Episodes of Nightly News

Inspiring America

Keeping you Healthy

Stay up-to-date on the latest health and medical news.

Play All

Nightly Films