Iceland’s most active volcano has began erupting, researchers said Saturday – approximately a year following an additional eruption around the North Atlantic area, the event caused the shut down of the European air traffic for several days.

Iceland’s Meteorological Office verified that this eruption had commenced at the Grimsvotn volcano, along with a series of minor earthquakes. Smoke might be witnessed ascending through the volcano, which is situated underneath the uninhabited Vatnajokull glacier in southeast Iceland.