Flight cancellations at Hamburg Airport after a surprise strike by workers affected more than 40,000 passengers on Sunday, a day before a planned wider protest across Germany amid new contract negotiations.

The one day walk out has already left thousands of flights grounded at hubs including Berlin, Frankfurt, Dusseldorf and Munich. View on euronews

The airport in Germany’s second largest city said the one-day strike, called over pay and conditions, began earlier than expected “without any notice.”