A thunderous explosion tore through a BP oil refinery Wednesday, shooting flames and billowing smoke into the sky and showering the area with ash and chunks of charred metal. At least 14 were believed dead and more than 100 were injured. The cause of the explosion was not immediately known. Workers searched through rubble for survivors or bodies into Wednesday night, several hours after the 1:20 p.m. blast. An undetermined number of workers were unaccounted for; most of the injured suffered broken bones, cuts, concussions and other injuries.
