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National UFO Reporting Center Sighting Report
Occurred : 9/11/2015 21:20 (Entered as : 9/11/2115 21:20)
Reported: 9/11/2015 10:18:16 PM 22:18
Posted: 9/17/2015
Location: Renton, WA
Shape: Unknown
Duration: ~2 minutes
Characteristics: There were lights on the object, The object changed color, There were aircraft in the vicinity or aircraft chasing the object
Bright red lit aircraft turns green.

Tonight, I witnessed object flying at low speed with multiple extremely luminous red lights from North to south. It raised up then down in a low amplitude arc then stopped abruptly. It hovered for approximately 30 seconds, then all the lights turned green.

Approximately 30 seconds after that a small (air craft looking) light green strobe started.

The craft then raised and lowered a short distance before returning to its original position. The craft then lowered below my sight line. No sound.

I live in an area with a lot of air traffic, and this was unlike anything seen before. It may be possible that it was a drone, however from the size, distance, and speed, I find it unlikely.