"Turks spark German passport row
German Turks can have either a German or Turkish passport
The German government has warned that 'illegal' Turkish voters could distort the result of a key regional election amid a row over dual citizenship.
Interior Minister Otto Schily has demanded that Ankara provide a list of Turks resident in Germany who have reapplied for Turkish citizenship.
German law bans dual citizenship. About 50,000 German Turks have reapplied for Turkish passports, German media report.
The government faces an important poll in North Rhine-Westphalia on 22 May. "
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