UFO? Meteorite? Mystery Orange Glow Lights Up Russian Night Sky

This is the mysterious moment that a huge orange flash illuminated the night sky in a remote area of Russia - and no-one knows what caused it.

An explosion was captured by a driver with a dashboard mounted camera as he was cruising along a quiet stretch of motorway near Sverdlovsk in the mountainous Urals region of Russia.

The video, taken on November 14, shows a ball of orange light which rapidly expands to illuminate the entire road, turning the dead of night into the middle of the day for around ten seconds.

Expert opinion is divided on what actually caused the flash.