In May 2010, Air France–KLM announced increased losses (€1.56 billion for the year to 31 March 2010), and warned that the 2010 eruptions of Eyjafjallajökull had caused a further €160 million loss in the current financial year. Air France–KLM is one of the largest airline companies in Europe, with 204.7 billion passenger-km in the year ending 31 March 2011.