One day after spewing ash into the air in a volcanic eruption, drone footage showed gas continuing to billow from Italy's Mount Etna.

Tours are returning to the slopes of Mount Etna after its largest eruption in four years sent tourists fleeing from a vast column of gas and ash on Monday.After footage of the dramatic eruption circulated online - showing tourists sprinting down the volcano as black ash spewed several kilometres into the sky - Italian geological authorities were quick to quell fears that tourists and residents were under any danger.

Mount Etna has again captivated the world with a spectacular show. The volcano that towers over eastern Sicily spewing smoke and ash high into the air.