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.

UPDATE: City officials identified the child as Cassius Ramos-Benigno. A 3-year-old boy died Monday of injuries suffered in a massive fireworks explosion on New Year’s Eve in Salt Lake, according to the Honolulu Police Department. He is the fourth person to die in the incident, which also injured around 24 others, many critically.

The death of a 3-year-old boy on Monday raised the death toll in a massive fireworks explosion in Honolulu on New Year’s Eve to four.

Honolulu police said the explosion occurred after someone lit an “aerial cake” that fell to the side and rocketed into crates of additional caches of pyrotechnics, then erupted outward.

A woman who died in the New Year’s Eve fireworks explosion on Keaka Drive was identified Tuesday as 61-year-old Carmelita Benigno, according to the Honolulu Medical Examiner’s Office. Officials previously said the other victims were 23-year-old Jennifer Van, 58-year-old Nelie Ibarra and 3-year-old Cassius Ramos-Benigno.

A three-year-old boy has died after a New Year's Eve fireworks explosion in Honolulu, Hawaii. The blast killed three women and left at least 20 people injured

A three-year-old has become the fourth person to die from injuries sustained in a massive fireworks explosion on New Year's Eve. Over 20 other people sustained severe burns covering most of their bodi

The U.S. military flew six patients to Arizona for treatment on Saturday because Hawaii's lone burn center doesn't have enough capacity to care for all the victims.