Image provided by Venezuela's Presidency shows Venezuelan President Hugo Chavez (L) visiting a victim of a refinery explosion, at a hospital in Punto Fijo, Falcon State, Venezuela, on Aug. 27, 2012. (Photo/Xinhua)
Image provided by Venezuela's Presidency shows Venezuelan President Hugo Chavez (C) visiting a victim of a refinery explosion, at a hospital in Punto Fijo, Falcon State, Venezuela, on Aug. 27, 2012. (Photo/Xinhua)
Image provided by Venezuela's Presidency shows Venezuelan President Hugo Chavez (L) visiting victims of a refinery explosion, at a hospital in Punto Fijo, Falcon State, Venezuela, on Aug. 27, 2012. (Photo/Xinhua)
Image provided by Venezuela's Presidency shows Venezuelan President Hugo Chavez (R) visiting victims of a refinery explosion, at a hospital in Punto Fijo, Falcon State, Venezuela, on Aug. 27, 2012. (Photo/Xinhua)
A fire burning at Venezuela's biggest refinery killed at least 48 people in the country's deadliest oil industry accident, on Saturday.