In this Wednesday, March 8, 2017 photo, fireworks explode off a wheeled paper bull rigged with fireworks in the middle of the packed town square, during the annual pyrotechnics fair in Tultepec, on the outskirts of Mexico City. Two months after an explosion tore through the Tultepec fireworks market, killing 42, the town honored its patron saint San Juan de Dios in its usual exuberant style, by exploding hundreds of colorful bulls elaborately rigged with fireworks in a field and the town square. (AP Photo/Rebecca Blackwell)