HONOLULU (HawaiiNewsNow) - Hawaii News Now's Facebook page was flooded Thursday afternoon with photos of mysterious looking clouds.
The 'rings' were spotted above Oahu, Maui and Lanai.
They looked like the common contrail or vapor trail that forms behind aircraft; however these 'trails' were circular and do not match the normal Hawaii flight patterns.
Some wondered if they were part of the RIMPAC exercises or even a UFO?
Here is the official statement from RIMPAC:
"RIMPAC's Air Forces had a NATO AWACS aircraft flying south of Oahu, in a circular pattern; at about 29,000 feet today during the time those contrails were visible. The AWACS was controlling RIMPAC assets exercising further away from the island."