Multiple fire departments responded to a two-alarm fire at the former Maywood Elementary School in SeaTac on Tuesday night and into Wednesday morning.

Responding firefighters switched quickly from offensive to defensive tactics because of the intensity of the blaze, said Pat Pawlak, division chief for the Puget Sound Regional Fire Authority. That means the initial focus was on preventing the spread of the fire rather than on putting it out completely. It took seven hours to put it down, he said.

There were no reported injuries, he said. The origin and cause of the fire have not yet been determined.

South 200 Street was closed in the area of 14th Avenue South for hours.

The former Highline School District property, which was sold last year to Bride Development, had been closed to students since the 1970s.