WATCH: Buildings collapse after Mexico City earthquake, 224 killed

Shocking video footage shows the moment a building collapses in Mexico City after a 7.1 quake struck near the Mexican state of Puebla on Tuesday.

The number of people killed in a devastating earthquake that struck Mexico City and nearby regions on Tuesday has risen to 224, the government said.

The figure was a sharp jump over the 105 deaths previously given by the government disaster response agency CENAPRED.

The quake hit five miles from the Mexican state of Puebla, at a depth of 32 miles, according to the United States Geological Survey.

At least 21 children were killed at an elementary school that collapsed in the Mexican capital, a government official said.

"We have a report of 25 dead, among them 21 children and four adults" at the Enrique Rebsamen elementary school, Mexican Undersecretary of Education Javier Trevino told the Televisa network.

Morelos state, directly south of the capital, suffered 64 deaths.

Puebla, to the southeast, had 29 deaths. And nine people died in Mexico state, which lies just to the west of Mexico City.

(With AFP)