Officials have said that Ankara is upset that Germany is lax in efforts to control Kurdish militancy after Berlin banned a Turkish charity tied to a deadly Israeli raid.

The German government banned the Foundation for Human Rights and Freedoms and Humanitarian Relief, or IHH, because of its anti-Israeli stance.

It should be noted that the Turkish IHH was involved in the deadly raid on a flotilla bound for Gaza.

According to the media reports, the government said the organization was linked to Hamas. The Frankfurt-based IHH had split from Turkey's IHH, though Turkish Foreign Minister Ahmet Davutoglu lashed out at Berlin's "silence" over the European activity of the Kurdistan Workers' Party, or PKK.

The Germany Embassy in Ankara in response to queries by Turkish daily newspaper Hurriyet said the issue was overblown as both countries were cooperating in the fight against Kurdish militants.

It was announced by German authorities earlier this year that they captured Abdul Rahman Haji Ahmadi, the leader of Iranian militant opposition group the Free Life Party of Kurdistan. (With Inputs from Agencies)