Villarrica

This amazing shot shows a double lenticular cloud lit up by the lava from the Villarrica volcano in Chile.

Villarrica is one of the most active volcanoes in South America.

The authorities in Chile have raised the alert level for the Villarrica volcano to orange, the second-highest, after they registered a gradual increase in its activity.

Schools in the nearby towns of Pucón and Villarrica will close for five days from Monday and pupils will be taught online.

Chile's National Geology and Mining Service, Sernageomin, on Sunday raised the alert level for the Villarrica volcano from yellow to amber, citing a gradual increase in volcanic activity.