UFO landing filmed near Novosibirsk, Siberia

A witness has captured footage of what is thought to be a rare case of ball lightning on his smartphone.
The glowing sphere showed up above a field near Novosibirsk, Siberia's largest city, before slowly moving through the air and disappearing behind some nearby trees.

The phenomenon was filmed by Roman Tregubov, a graduate of the Novosibirsk State Technical University, who can be heard referring to the spectacle as "fireball lightning" in Russian. 

"It's the first time I see one in my life," he said as he continued to film the orb. "It's going to move away. Lost it. Where it is? There is it. I wonder if it'll blow off soon. Yep, it blew off."

Ball lightning is an incredibly rare natural phenomenon which typically manifests as a glowing orb.

This appears to be one of only a few known examples of it ever captured on film.