(CRESSON, Texas) — A fire at a Texas chemical plant Thursday injured two workers and left a third unaccounted for, and fire crews weren’t able to battle the blaze because of the toxic fumes being spewed into the air, an official said.

Investigators believe the fire at the Tri-Chem Industries plant in Cresson was sparked by a worker dragging his foot on the floor while chemicals were being mixed, said Bob Cornett, the mayor of Cresson. Read more.