A sixth person died Wednesday from injuries sustained when crates of illegal fireworks ignited during a New Year’s Eve party in a Honolulu neighborhood, setting off a chain of explosions that left more than a dozen people with severe burns.

Police say a sixth person has died as a result of a massive explosion of illegal fireworks over New Year’s in Honolulu. A 30-year-old woman died at a local hospital at about 5:59 a.m. Wednesday, the Honolulu Police Department said in a statement.

Eight people are still being treated in burn units in Arizona and Honolulu, and the police investigation is ongoing.

A sixth person has died following a fireworks explosion in Hawaii. Police say a 30-year-old woman died at the hospital on Wednesday. Three other women, a 3-year-old boy and a man have also died. Five burn patients are still being treated at a Phoenix hospital.