TEHRAN, July 24 (MNA) – Etna, one of the world's most active volcanoes, has seen intense activity in recent days, spewing hot ash and lava.

Some of the ash had drifted on to runways and aircraft.

Download 20 MB Mount Etna, or simply Etna, is an active stratovolcano on the east coast of Sicily, Italy, in the Metropolitan City of Catania, between the cities of Messina and Catania.