ISTANBUL - Turkey summoned the German ambassador to Ankara on Monday over a report in magazine Der Spiegel that Germany's BND intelligence agency had been spying on its NATO ally for years, a Turkish foreign ministry official said.

The German magazine reported at the weekend that Berlin had identified Ankara as a top surveillance target in an internal government document from 2009.

Turkey's acting foreign ministry undersecretary Erdogan Iscan met German Ambassador Eberhard Pohl to voice Turkey's concerns about the report, the official said, without giving further details.

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