|This image made from video provided by APTN|
|The explosion, which was caught on camera, sent a huge plume of charcoal-gray smoke billowing into the sky|
|The Mexican Red Cross said it sent 10 ambulances with 50 paramedics to the scene|
A fire engulfed the same market in 2005, touching off a chain of explosions that leveled hundreds of stalls just ahead of Mexico's Independence Day. A similar fire at the San Pablito Market also destroyed hundreds of stands in September 2006.