Mount Etna is one of the most active volcanoes in the world and has erupted about 200 times since 1500 BC.
The volcano has been very active in recent years, and has been erupting for the last 500,000.
The year 2001 was particularly busy, with a spate of 16 eruptions that began in July that year.
The eruption was accompanied by earthquakes and the opening of at least five volcanic vents.
According to the US space agency NASA, which saw the eruption from space, lava from the eruption flowed within three miles of the town of Nicolosi.