Residents near Shortandy, Kazakhstan, spotted a mysterious floating ring in the sky over the weekend.

It lasted for around 15 minutes and disappeared almost as mysteriously as it appeared, Russia Today reported.

It almost looked like a giant blew a perfectly round and thin smoke ring.

So, what caused this mysterious vision in the sky? Insects? Aliens?

Take a look at the video and share your opinion on what it is!

Source: Free Beer & Hot Wings