Iceland has raised its flight warning from orange to red, its highest level, as the country’s largest volcano experienced an increase in seismic activity which could cause it to erupt.
The warning means the volcano is likely to produce significant amounts of ash that could disrupt air travel as Eyjafjallajokull did in 2010.
Scientists first identified increased seismic activity at the volcano on 16 August and have since been monitoring it closely.
They found thousands of small earthquakes occurring in the remote area where the volcano is located increasing the risk of eruption and raising warnings to an orange alert.
Activity "increased considerably" this morning causing the higher red alert to be issued. Iceland's Met office said: "It is believed that a small subglacial lava-eruption has begun under the Dyngjujokull glacier,"
The eruption of Eyjafjallajokull and resulting ash cloud caused travel chaos and cost businesses billions of pounds,
It's estimated the ash cloud cost the European economy $5bn, with airlines, airlines and travel and tourism companies hardest hit.
However, a change in aviation regulation since then allows airlines to fly with some levels volcanic ash in the air where previously the same levels grounded flights.
Watch the live stream to keep an eye on developments at the Bardarbunga volcano- experts warn that dust storms in the area can look like an eruption.