Turkish Prime Minister Recep Tayyip Erdogan criticized Germany's attitude to its Turkish minority on his arrival in Berlin to celebrate the 50th anniversary of a "guest worker" agreement between the two countries.
Erdogan's ceremonial trip to Germany has been free of friction so far. He was given an official reception at the palace of German President Christian Wulff on Tuesday evening, and he will met Chancellor Angela Merkel at an event on Wednesday.
Merkel praised the first Turks who came to support West Germany's booming economy five decades ago. "That was a courageous step," she said, adding that successful integration of immigrants was a "joint achievement" of both Turks and Germans.