A large sulfur dioxide gas cloud is blowing toward Keflavík International Airport. Authorities have told people nearby to stay indoors and keep their windows shut as pollution levels rise. Despite this, flights are running normally and the airport remains open.

A volcanic eruption in Southwestern Iceland forced the evacuation of a nearby town and the world-famous Blue Lagoon geothermal spa on Wednesday, July 16. Media images captured huge plumes of smoke and glowing lava flows spewing from an enormous crack in Earth’s surface roughly 30 miles (18.6 miles) southwest of Reykjavík.