A one-day strike by workers at 13 German airports, including the Frankfurt and Munich hubs and all the country’s other main destinations, has caused the cancelation of most flights.

More than half a million people are facing travel disruption at German airports on Monday where a 24-hour strike has led to thousands of flight cancellations in a dispute about workers' pay. The operator of Frankfurt airport,

The 24-hour walkout, which started at midnight on Sunday, involves public-sector employees at the airports as well as ground and security staff.