By Erwin Seba HOUSTON (Reuters) -A scaffolding collapse on Wednesday at Chevron's Pasadena, Texas, refinery injured three workers, a Chevron spokesperson said in a statement. One of the three contract workers was flown by helicopter to a Houston-area hospital due to the severity of injuries received,

Two workers were hurt in a scaffold collapse at a Chevron plant in Pasadena, one severely, falling 25 feet; details of the cause and third victim's status are unclear.