Petroleos Mexicanos said in a statement Sunday that rescuers with dogs had reached some of the area's most affected by Wednesday's blast and had located more bodies. It said all the workers in the plant that day have been located.
The company said more than 130 people in all suffered injuries when the explosion rocked the plant in Coatzacoalcos, 600 kilometers southeast of Mexico City.
Pemex has said the explosion happened after a leak but has not determined the source.
