BERLIN (AP) -- Travelers at Germany's Duesseldorf and Cologne-Bonn airports face a second day of flight cancelations and delays due to a strike by security personnel.
More than 50 flights were canceled Friday at Duesseldorf airport, Germany's third-busiest, and 26 at Cologne, German news agency dpa reported.
The walkout by a few hundred staff at the two airports started on Thursday morning and was expected to last until Friday evening. The ver.di union is seeking a roughly 30 percent pay increase for employees at security companies in North Rhine-Westphalia state, where the airports are located; employers argue that it has rejected a 9 percent raise for airport workers and that complying with the demand would cost jobs.
So-called warning strikes are used regularly as a tactic to increase pressure in German wage negotiations.