In the hours after the blast , about 30 people were reported to be trapped in debris .
Searches continued into the next day , as Pemex CEO Emilio Lozoya said there were indications that some people remained under the rubble .
In the hours after the blast , about 30 people were reported to be trapped in debris , and searches continued into the next day , as Pemex CEO Emilio Lozoya said there were indications that some people remained under the rubble .