Reported Explosion, Fire At Ellis County Plant

ENNIS, Texas (CBSDFW.COM) – Firefighters in Ennis are fighting a fire at U.S. Polyco off I-45 in the 3100 block of South Kaufman Street.
The company deals in asphalt, coatings and additives according to their website.
Multiple people reported feeling and hearing a loud boom around 7:30 p.m. Friday, they thought was an explosion.
U.S Polyco in Ennis (Chopper11)
The Ennis Mayor Angie Juenemann said on Facebook an asphalt rail container blew its top causing the loud boom.
She also said the fi