Lava continued to emerge from Iceland’s Bardarbunga volcano on Friday and officials say the fissures are getting longer.

Scientists are concerned that if the latest eruption spreads to an ice cap 4 kilometres away, the subsequent explosion could generate ash clouds.

In 2010, much of European airspace was shut for several days when ash clouds from another volcano spread across the continent.

Bardarbunga lies 219 kilometres away from the Icelandic capital Reykjavik.