 Sporting, entertainment and many other events were cancelled, delayed or disrupted when individuals or teams were unable to travel to their destination.The state funeral of President of Poland Lech Kaczyński and his wife Maria Kaczyńska on 18 April 2010 was affected as some national leaders were unable to attend, including Barack Obama, Stephen Harper, Angela Merkel, and Nicolas Sarkozy.Air travel and transport throughout the world was cancelled due to the airspace restrictions and the International Air Transport Association (IATA) estimated the airline industry worldwide would lose £130 million ($200 million) a day as a result.