A woman died in a van vs. semi collision at 15th Street Northwest and Ron Crockett Drive on Dec. 6 in Auburn.

When crews from the Valley Regional Fire Authority, South King Fire and Rescue, the Auburn Police Department, and King County Medic One arrived at the scene shortly after 7 p.m. Monday night, they found three seriously injured people.

Crews worked quickly to free one of the injured parties from the van while they treated the other two.

A 22-year-old woman, place of residency not given, was pronounced dead at the scene. The other persons, no ages given, were transported to area trauma centers with serious- to life-threatening injuries.

“We are still early in the investigation,” Kolby Crossley, public information officer for the Auburn Police Department, said Wednesay afternoon, “but what our officers have come to at the moment is that speed was a factor, and there were unrestrained occupants in the vehicle. Whether or not the female who died was restrained is unconfirmed at this time.”

Auburn Police closed 15th Street Northwest at SR-167 in both directions to conduct their investigation.