Pemex: 4 dead in explosion at Mexico fuel depot

Mexico's state-run oil company has said four people have died from an explosion at a fuel storage and distribution depot in the central state of Guanajuato.
Petroleos Mexicanos said in a statement that one worker died Wednesday following the blast, while another worker and two private company employees died the following day. Four people remained hospitalized yesterday.
Pemex said authorities have opened investigations into what caused the explosion.