MEXICO CITY — On one of Mexico City's trendiest streets, lined with art galleries, cafes and gourmet restaurants, taco vendor Luis Miguel Osorio and his wife and daughter worked rapidly Wednesday to serve food to the victims, volunteers and emergency workers crowded around a nearby apartment building that collapsed during Mexico's deadliest earthquake in 32 years.

The site remained one of several crisis points around the capital as authorities and volunteers worked to locate the missing and rescue those still trapped beneath rubble a day after the temblor. Authorities have reported a death toll of 230 in central and southern Mexico, with the largest number of fatalities — 100 — in Mexico City.

Yet, in the space of 24 hours, a sense of terror shifted to a spirit of solidarity as friends, neighbors, relatives and often complete strangers came to one another's aid, transcending Mexico's usually rigid class divisions.

[Death toll in Mexico quake rises as citizens frantically look for the missing]