Metallic orbs have taken over from flying saucers as the most commonly seen mystery objects Sightings have included orbs in the hours of the morning - spooky (Image: Getty Images)

More than 8,000 UFO sightings have been reported in the US in the past three years - mostly near military bases . ‌

A new report from crowd-sourced close encounter app Enigma found many were spotted in the dead of night near military installations in California, New York and Arizona. ‌

A total of 422 incidents involved the presence of metallic orbs between 1am and 4am within five miles of army, navy or air force bases. ‌

The main military sites buzzed by UFOs - aka Unidentified Aerial Phenomena or UAPs - were Fort Hamilton in New York, Papago in Arizona, and Los Angeles Air Force Base in C

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