Texas authorities are launching a criminal investigation into last month's deadly fertilizer distribution facility explosion in West, Texas, the Texas Department of Public Safety said Friday.
DPS Director Steven McCraw says in a statement he wants to ensure "no stone goes unturned" in the investigation.
The April 17 fire and explosion at West Fertilizer Co. killed 14 people and devastated the small town of West.
The blast happened about 20 minutes after the first report of a fire at the fertilizer facility. It registered on seismographs as a magnitude 2.1 earthquake and could be felt 50 miles away.