A 3-year-old boy was the fourth victim killed in a massive illegal fireworks explosion in Hawaii, succumbing to injuries Jan. 6. The blast also killed three women and seriously injured more than 20 others.

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.

The six patients from Hawaii’s New Year’s fireworks blast are in stable condition and expected to survive, according to the doctor in charge of treating them at a specialized burn center in Arizona.

Six victims from a New Year's Day fireworks explosion in Hawaii face long recoveries in Arizona where they were flown be treated for severe burns. The massive blast killed four people and injured 20.

In her neighborhood, the fireworks ramp up after Halloween, exploding in the middle of the night until New Year’s. Doran said she can tell if there is a big mixed martial arts fight on TV because the booms begin earlier in the day.

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.