So, what exactly is an aerial cake? Richard Meier, a fire and explosion investigator with expertise in fireworks, said an aerial firework generally is lit on the ground and explodes in the air.

In layman's terms, a fireworks "cake" — or a pack of 36 tubes that each shoot a projectile into the air — malfunctioned, causing some of the projectiles to shoot into the crowd. Initially ...

More arrests have been made in the illegal firework explosion that took place in Aliamanu, Hawaii, on New Year's Eve, bringing the total to 10.