Scientists say one of Iceland's most feared volcanoes looks ready to erupt with measurements indicating magma movement, raising fears of a new ash cloud affecting air travel over Europe.
The Hekla volcano is close to the ash-spewing Eyjafjoell, which last year caused the world's biggest airspace shut-down since World War II, AFP reports.
The eruption affected more than 100,000 flights and eight million passengers.
The Iceland Civil Protection Authority says it is closely monitoring the situation.
Hekla has gone off about once a decade over the past 50 years and is known for its extremely varied and hard-to-predict eruptions, with some lasting only a matter of days and others lasting months and even years.