It is one of Mother Nature's most spectacular sights.
Mount Etna, Europe's most active volcano, has been at it again, spewing red torrents of lava into the sky.
Wednesday saw a short but explosive eruption. Some sporadic activity continued on Thursday.
Setting foot anywhere near the site of the bubbling lava on the southern Italian island of Sicily is not for the faint hearted but mountain guides monitoring the volcanic activity brought up groups of tourists.
