A glowing halo in clouds over Moscow on Wednesday looks like an Independence Day style alien attack, according to The Sun.
The astonishing ring was spotted over the city and captured on video by stunned locals.
It has been described as a "true mystery" by a UFO expert, the newspaper reported.
Scores of supernatural enthusiasts have been gripped by the astonishing footage and speculated it could be an alien mother ship.
The sighting in the clouds is reminiscent of scenes from the 1996 Hollywood blockbuster Independence Day.
"This is being discussed on forums, blogs and email lists all around the world. Some people say it's a bizarre meteorological effect.