A 27-year-old man and a 4-year-old boy perished in a two-alarm fire at an Auburn four-plex Wednesday night, the Valley Regional Fire Authority reported.

Just after 11:30 p.m. VRFA firefighters were dispatched to a report of fire at the four-plex in the 2300 block of O Street Northeast.

Neighbors reported that there were possibly people trapped inside one of the units. Auburn Police officers attempted to enter the unit before fire crews arrived but were turned back by smoke and heat.

Firefighters were able to quickly knock down the fire and make entry. The two victims were found deceased on the second floor, the VRFA reported, and two other occupants of that unit made it out safely.

All other occupants in the building escaped and are being helped by the American Red Cross. One dog also survived the fire.

The unit where the fatalities occurred and an adjoining unit sustained heavy fire damage. The other two units have smoke and water damage. There is damage to the attic space in all four units.

A VRFA Fire Investigator is on scene. The cause of the fire is still undetermined at this time.

The Puget Sound Fire Authority, South King Fire & Rescue, King County Medic One and Rehab One from Skyway Fire King County District 20 assisted the VFRA.