(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?
"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.