A mysterious light in the sky over South Australia has sparked speculation about UFO activity, but it is likely to have been the result of a European missile launch in South America.

The light was seen throughout South Australia.


The spectacle sparked speculation online, with theories involving extraterrestrial visitors or spy planes.

Experts who reviewed footage of the scene said the light was most likely the result of an Ariane 6 rocket launch from Europe's Cosmodrome in French Guiana. /Telegraph/