German airline Lufthansa has cancelled more than 1,300 flights today as airport workers walk out on strike.

Trade union Verdi called on workers at Frankfurt, Munich, Stuttgart, Hamburg, Dortmund, Hanover and Bremen airports to go on a 24-hour strike from 1am this morning.

Flight data firm Cirium said the strike will affect Lufthansa flights in and out of Heathrow, Manchester, Birmingham and London City.

Lufthansa had pre-warned passengers that all flights from its Frankfurt and Munich hubs would be cancelled.

The latest strikes come as German business weekly WirtschaftsWoche reports the airline plans to cancel 34,000 flights over the summer from its two main airports.

A Lufthansa spokesperson told the publication: “Lufthansa has adjusted the 2023 summer flight schedule from Frankfurt and Munich.”

The total number of cancellations could increase ‘as further daily cancellations can always be added,’ the spokesperson added.