 More than 300 flights at Germany's Düsseldorf and Colognebahn regional airports were grounded by a 24-hour strike by the Verdi Trade Union on February 27, the airport said. Of Monday's usual 136 daily passenger flights scheduled for Colognebahn Airport, 131 had been cancelled as of Sunday night. Düsseldorf Airport said that 205 flights of a planned 330 were cancelled while 29 were diverted to other airports and seven were rescheduled for the next day. If the employers continue to refuse to come up with a proposal, the workers' reaction will be clear. We will respond with a strike, said Verdi Trade Union Secretary Ozam Darim. Verdi announced the strike on Friday after it said collective bargaining efforts for public service workers and aviation security workers had failed to come closer to an agreement. The airports, which service airlines including Lufthansa, Turkish Airlines and Aegean Airlines, were largely empty because passengers had been informed of the strike in time to change their plans. The union brought air traffic to a standstill earlier this month with one day strikes at seven major airports, including the Frankfurt and Munich hubs, affecting nearly 300,000 passengers. The workers refuse to come up with a proposal, the result is that. We want more strikes on a Sunday, we want more strikes on a holiday, because the airport is not a company that has Sunday peace, that has no holiday peace, it is around the office and these times have to be paid and that is the requirement of one side of the employees of the aviation security industry and on the other side there are the employees of the public service, it is about a pure end-of-the-world round and therefore the employees 10.5 percent.