ORIGINAL 2:40 AM REPORT: More Seattle Fire crews are on their way to what started as a not-so-big response at a multiplex near 26th/Thistle in West Seattle, but is now described as a “roof fire.” We’ll be there shortly.

2:50 AM UPDATE: Our crew is just arriving and says this is a complex right across the street from Chief Sealth International High School. Scanner traffic says a chimney fire has extended into more than one unit, but the fire is under control. Police are being called for traffic control on SW Thistle. Our crew says firefighters are cutting ventilation holes in the building’s roof.

3:32 AM UPDATE: Damage estimate and cause investigation have to wait till fire investigators can make it here from another major fire scene they have been working elsewhere in the city (an ATM/bank fire in Madison Park). No injuries reported here, and the fire is pretty much out. We’ll add followup info whenever it’s available later this morning.

1:50 PM: Official investigation and damage info just in from SFD’s Kyle Moore: He says the first report was a “911 call reporting a fire from a fireplace that had grown out of control,” and that, “A Seattle Fire Investigator is calling this accidental in nature caused by a chimney fire that expanded to the wood walls around it. The damage estimate is $50,000 to the structure and $10,000 to the contents.” The Red Cross is helping those who weren’t able to go back into their units.