3:27 PM: Seattle Fire is sending a full-size response to the 8600 block of 9th SW in Highland Park for a possible house fire. More to come.

3:32 PM: The first units on scene say it appears to be just a fireplace problem, so the response is being scaled back. Our crew, on arrival, has confirmed: Fire in fireplace, flue not opened, smoke got out of control, no problem otherwise.