Americans in several southwest states have reported seeing a glowing, hazy UFO in the night sky around 9pm local on May 2.

The videos were uploaded to Enigma Labs, which shows observations in California, Arizona, Utah and Nevada.

While shot in different locations, witnesses described the UFO as appearing out of nowhere without a sound and disappearing into thin air.

Enigma Lab's UAP advisor Alejandro Rojas said that all the images appeared to be the same, but suggested it could have been a rocket - 'but there were no rockets scheduled at that time.'

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