Explosion reported at Port Arthur refinery in Texas, shelter advisory issued

Explosion reported at Port Arthur refinery in Texas, shelter advisory issued An explosion followed by a fire at a Valero refinery in Port Arthur, Texas, prompted authorities to urge some residents to shelter in place, local media reported. Police said people on the west side of the city should remain indoors as emergency crews responded to the incident. Officials said the cause of the blast was not immediately known, and it was unclear if there were any injuries.