Breathtaking footage has emerged online showing a UFO-shaped cloud hovering above the lava-spewing Sangay volcano in Ecuador. The unusual formation appears for a short time before disappearing completely as the volcano disgorges flows of lava and spews plumes of ash from its crater.
The phenomenon was captured by cameras surveilling the volcano from the Ecuadorian centre 911 Macas.
The 5,300-metre Sangay is situated in central Ecuador.
While it's erupted only three times in recorded history, Sangay is viewed as one of the world's most active volcanoes since this current eruption started in 1934 and is still ongoing.