DENVER -- Thousands saw a plane circling the Denver metro area late Wednesday morning, questioning where it may have come from and what it may be doing. Officials at a host of federal organizations had few answers. 

Denver7 began tracking a flight named IRON99 as it traversed from California over the pacific. It traveled over the Rocky Mountains and eventually over the Denver metro area. 

Its arrival over the Denver metro is what prompted questions from a host of locals who saw it circling, questioning what it might have been doing. 

Visually, the plane circled in a racetrack-style oval shape over the City of Denver at roughly 32,000 feet several times. 

After spending time making its loops, the aircraft then took off in a direct path to Oklahoma, without any record of stopping. 

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