UFO hysteria gripped parts of the US last night after people from California to Arizona spotted mysterious lights streaking across the skies.
Social media was buzzing with pictures and videos of the mysterious phenomenon.
It forced the military to intervene - and admit the lights were caused by US navy missiles being tested off California coast.
In a statement, a spokesperson said that "Navy Strategic Systems Programs conducted scheduled Trident II (D5) missile test flight at sea from USS Kentucky, an Ohio Class SSBN, in the Pacific Test Range off the coast of Southern California. The tests were part of a scheduled, ongoing system evaluation test".
The statement adds that the missile was not armed, and that missile tests are not routinely announced.
You can see a video of the 'UFO' below:
9:34 8 Nov 2015Newstalk 6 hours ago