Bird flu worries hurt airlines

European aviation stocks declined, following a drop among Asian carriers, on concern an outbreak of the bird-flu virus in China will clip travel and hurt demand already unsettled by rising military tensions with North Korea.

Air France-KLM, Europe’s biggest airline, fell as much as 4.9% in Paris trading, Deutsche Lufthansa declined as much as 5.8% in Frankfurt, and British Airways parent IAG lost 5.2% in London.

The drop spilled over to European low-cost carriers that don’t serve global routes, with Ryanair falling 3.5% and Easyjet down 5.1%, the most in a year.