A powerful gas tank truck explosion shattered a maternity and children's hospital in Mexico City on Thursday, killing at least three adults and one baby and injuring dozens.
Claudia Dominguez, spokeswoman for the city's civil defense agency, confirmed the deaths and said she expected an updated toll soon.
She said she could not confirm the report by the local borough chief, Adrian Rubalcava, that seven had died.
Rescuers continued digging through the rubble even as smoke rose from remaining fires.
Mayor Miguel Angel Mancera earlier told the Televisa network that at least 54 people were injured, 22 of them children. Most of the injuries were relatively minor, he said, many caused by flying glass.Fausto Lugo, the city's civil defense director, said 37 people were transported to other hospitals and he said other people were likely still buried in the rubble. (AP)