State and federal officials investigating the explosion at the West Fertilizer Company say the cause is still “undetermined”.
But at an afternoon press conference they said they had ruled out a number of causes including a fire at the plant, spontaneous ignition and one of two electrical systems .
ATF Special Agent Robert Champion identified three other potential causes still being investigated: a 120 volt electrical system; a golf cart ; or an intentionally set fire.
Authorities say this is still considered a criminal investigation
They acknowledged the West paramedic who was indicted this week for having materials used in making a pipe bomb. Attorneys for Bryce Reed, 31, say he’s innocent, but officials today refused to comment on whether Reed was involved in the explosion.
The golf cart mentioned as a possible cause may have had an electrical problem that ignited the first of two explosions that packed the power of up to 20,000 pounds of TNT.