Iceland has raised its aviation alert for the restless Bardarbunga volcano to red, indicating that some type of eruption is imminent or in progress.
Thousands of small earthquakes have rattled the volcano deep beneath Iceland's Vatnajokull glacier in the last week, with activity picking up today after a lull the day before.
The eruption of Iceland's Eyjafjallajokul volcano in 2010 produced an ash cloud that caused international aviation chaos, with more than 100,000 flights cancelled.
More top news
A legendary Bunny, leisure centres and protests from the Anti-Nazi League. There's plenty to learn as Murray and Co bid for tennis glory.
Natasha Kaplinsky has interviewed survivors and liberators of Nazi concentration camps to hear untold stories of the Holocaust
The man jumped the fence while the president and his family were inside celebrating Thanksgiving but was quickly apprehended.