UPDATED 0:16 AM EST, February 4, 2013
Petroleos Mexicanos operations director Carlos Murrieta had said that rescue crews were looking in the rubble for several more people reported missing, and believed their bodies were in the building's most damaged part.
The bodies of two of the four more people reported missing by their relatives were recovered Sunday.
Officials still have not given any cause for the explosion, though they have said they suspect it was an accident. The blast also injured 121 people.
