ROUGH CUT ONLY - NO REPORTER NARRATION<br/> Sicily's airports braced for delays on Friday after Mount Etna in southern Italy spewed columns of ash into the sky.<br/> The volcano has been belching away for weeks, encouraging experts to warn there could be a big eruption soon.<br/> Lying above the Sicilian town of Catania, Etna often erupts but rarely causes damage or the need for evacuation.<br/> On Thursday, the hundreds of metres high plume of ash led to airspace being closed around the volcano. It has now reopened but with delays on flights expected throughout the day.
