Update 1:10 a.m.
Fairfield Fire Chief Scott Vaughan tells KTVO that his department is now concerned about the structure of the downtown building. "Structural is the main concern right now," Vaughan said. "The building itself is basically a total loss. We're just worried about the structure itself with the brick walls."
Fire crews faced explosions going off inside the building which put firefighters in a defensive mode. A defensive mode means that firefighters would not enter the building but rather fight the fire from the outside.
Vaughan says everyone was able to escape Wednesday night's fire.
A Fairfield apartment building went up in flames on Wednesday evening.
Tenants of the building at 406 W. Depot Ave. told KTVO the blaze was reported just before 7:30 p.m. Wednesday.
Residents Matthew Gant and Shannon Letzin said, as far as they knew, everyone made it out safely.
They told us the structure is a former commercial building that's been turned into eight apartments.
Gant said the side and back of the building were fully engulfed in flames.
Letzin told KTVO there was a lot of smoke coming from the structure.
Reporter Greg Deffenbaugh said a trailer in the Ranch Trailer Court in Fairfield was also burning.
He said 60 firefighters from multiple departments in surrounding communities were on the scene in Fairfield to help battle the blaze.
The fire appeared to be under control around 10:30 p.m., but it was expected to burn for a few more hours.
The American Red Cross is assisting the apartment tenants who were left out in the cold by the fire.