5:06 PM: Seattle Fire units are helping North Highline with a big apartment fire in the 12300 block of Ambaum, not far south of White Center. More to come.
5:24 PM: We are in the area. TV choppers overhead. Traffic is now getting through both ways on Ambaum but slowly so avoid if you are headed this way.
6:03 PM: No injuries reported, according to our friends at KING 5. We’ve left the area after the situation seemed to ease – we saw three Seattle fire vehicles leaving, and several from other departments, including Renton and Tukwila, were waiting two blocks south just in case they were needed.
6:21 PM: While the assisting firefighters were summoned to the 12300 block of Ambaum, regional-media reports note that the building’s actual address is 1224 124th, just west of Ambaum, a 24-unit four-story building that’s 47 years old.
11:02 PM: KIRO TV reports that a baseboard-heater problem is blamed for the fire.