One person reported seeing the choppers between about 11:30 p.m. and 12:30 a.m. around Monroe, Maltby and Woodinville.
The helicopters were part of a military training exercise from Joint Base Lewis-McChord near Tacoma, according to local police.
They were unrelated to a small rescue effort in the Sultan Basin Road area. In that case, a man in his 20s was found safe and sound about 9:40 p.m. after being reported missing during a hunting excursion with a friends a couple of hours before, according to police.
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