Aerial view shows the eruption of the volcano Grimsvotn in the south-east of Iceland, May 21. Iceland closed its main international airport May 22 following the eruption of a volcano in the south-east of the country, aviation authorities said. The decision also affected other Icelandic airports, while transatlantic flights would be diverted south of Iceland, according to a spokesperson of the aviation authority Isavia. The Grimsvotn volcano began to erupt on Saturday, the Icelandic Meteorological Office said. But the prevailing winds suggested that the Grimsvotn ash cloud would in the coming days blow north and not affect mainland Europe.