Sicilian volcano Mount Etna erupts again
Mount Etna, Europe's highest active volcano, has begun erupting again.
It is the third time the Sicilian volcano has erupted in the past month.
Despite the scale of the event, the authorites in Italy have said it does not currently pose any threat to local towns, and the nearby airport of Catania remains open.
BBC World's David Eades describes the volcano's latest eruption.