A giant cloud of ash from the volcano in Iceland has risen 11 kilometers high and is spreading across Europe from England to Russia, grounding flights and sending residents indoors. This BBC News map shows the expansion of the cloud over the past few days: since April 15 the cloud has slowing been moving south and west, gradually enveloping most of the continent.
Estimates put the number of flights canceled at 17,000. Click here for a country by country listing of flight cancellations. Earlier this morning, Lufthansa canceled its flights at a number of airports, having the greatest effect on the airports in Munich and Frankfort, according to this news site. Click here to check the status of a Lufthansa flight.
The volcano erupted April 14 near the Eyjafjallajoekull glacier in Iceland. Click here for a set of satellite images.