Talks between Lufthansa and its main cabin crew union have failed, the union said on Saturday, raising the prospect of more strikes at the German carrier.

Lufthansa is in talks with various staff groups as it seeks to cut costs in order to compete better with low cost carriers and Gulf rivals.

A long-running dispute with its pilots over pay and conditions has already resulted in more than a dozen strikes over a period of 18 months.

The cabin crew union, which represents 19,000 staff had given Lufthansa until Nov. 1 to put forward a better offer in long-running talks over pay, retirement benefits and working conditions.

Despite a constructive start to talks over the weekend, Lufthansa refused to reconfirm agreements it had previously made verbally, Nicoley Baublies, head of the union, told Reuters.

"Strikes are a possibility," Baublies said, adding that the union would announce its next course of action on Monday.

Lufthansa was not immediately available for comment. – Reuters