(CNN) -- As the sun rose Thursday over West, Texas, the scope of the small town's devastation came into fuller view: a gruesome, bloody scene, homes flattened to rubble, and scores of firefighters battling a raging blaze.
The massive, deadly blast at a fertilizer plant Wednesday night forced the evacuation of about half the town of about 2,800 people and left officials asking key questions: Was it a crime or an accident? How could it have happened?
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"Nothing at this point indicates we have had criminal activity, but we are not ruling that out," said Sgt. William Patrick Swanton of the nearby Waco Police Department.