Earlier in the day, the reports indicated that nine people died in the collapse, including eight children.
”As a result of the collapse of Colegio Rebsamen, 22 children and two adults have died,” the Noticieros Televisa broadcaster reported.
The earthquake with a magnitude of 7.1 occurred on Tuesday near the town of Puebla de Zaragoza southeast of Mexico City.
Nearly 4 million people have since been left without electricity, Mexico's Federal Electricity Commission announced via social media.
The Mexico City mayor said that at least 20 buildings have been damaged, some of them were engulfed in flames with people trapped inside.
According to the latest figures, at least 149 people have died in the natural disaster. The earthquake caused major damage to the infrastructure of the country.
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