7:10 PM: We’re on our way to a Harbor SW condo building in the 1200 block (map), where first, according to the scanner, a fireplace fire was reported – then “some extension” was discovered, so the fire response was upgraded. More to come.

7:15 PM UPDATE: WSB contributor Katie Meyer says scanner traffic indicates the fire is “tapped”; we’re just arriving at the scene and the response is still a big one, with a ladder to the roof.

7:25 PM UPDATE: Traffic in the area is one lane, alternating directions, according to our crew at the scene.

7:57 PM UPDATE: Now traffic is open both ways. The fire is definitely out, not huge, no injuries (just confirmed this with SFD on scene); we’re still there in hopes of finding out what exactly happened.

8:35 PM UPDATE: SFD says this unit had the last wood-burning fireplace in the building, and something in the chimney, maybe buildup, caught fire. The unit had to be ventilated through a hole in the roof, so until that’s fixed, the unit residents won’t be able to go back inside.