The six victims are in their 20s and 30s, and all have extensive burns, according to Dr. Kevin Foster, director of the Arizona Burn Center.

A New Year's Eve fireworks explosion in a Honolulu -area neighborhood killed at least three people and critically injured at least 20 others, authorities said. "It looked like a war zone," said Honolulu Fire Chief Sheldon K. Hao.

Six survivors of a massive fireworks explosion in Hawaii have been flown to Phoenix for treatment. This comes as we're learning a three-year-old boy died on Monday as a result of the blast, raising the death toll to four.