Turkish President Recep Tayyip Erdoğan and German Chancellor Angela Merkel on Wednesday talked over the phone and agreed on meeting in Berlin in September.
The two leaders confirmed their commitment to strengthening cooperation through mutual high-level visits and contacts, said the sources, who asked not to be named due to restrictions on speaking to the media.
They also discussed Turkish Treasury and Finance Minister Berak Albayrak meeting with his German counterpart.
Erdogan last paid Berlin an official visit in 2014.
Merkel also stressed that the strength of the Turkish economy is important for Germany.
She told a news conference on Monday that an "economically prosperous Turkey" serves Germany's interests.
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