Grimsvoetn Volcanic Ash

An image released by NASA shows smoke billowing from Grimsvoetn, Iceland's most active volcano. Authorities shut Iceland's airspace after the country's most active volcano began spewing ash cloud 20 kilometres into the sky, raising fears of a repeat of last year's flights chaos.

Picture: AFP/NASA

This aerial view shows the volcano Grimsvoetn in the south-east of Iceland, which began to erupt on Saturday

Picture: EPA