(Photos taken this morning by WSB’s Patrick Sand)
New information about last night’s house fire in the 10000 block of 39th SW in Arbor Heights (WSB as-it-happened coverage here): Its cause is currently listed as “undetermined,” but Seattle Fire spokesperson Kyle Moore tells WSB that could change: They haven’t been able to speak yet with the two residents, both in their 70s, who remain hospitalized, and it’s still not safe for investigators to go in and look for evidence of how it started.

You can see why, looking at our photos from a trip back to the scene this morning, with smoke still rising from the house:

As we reported last night, the house is considered to be a total loss; this morning, SFD estimates the damage at $350,000 for the house, $100,000 for the contents.

The fire was first reported around 7:40 pm; SFD says it was under control about half an hour after its crews started arriving.