Green party co-head Cem Özdemir has cautioned against radical Turkish nationalists in Germany. Özdemir has also suggested possible sanctions and said the government must send a signal to curb "Erdogan's long arm."

In the aftermath of a failed military coup in Turkey, Germany's Green party co-leader said German politicians need to treat radical Turkish nationalist groups with the same caution as radical right-wing groups in Germany interview on Sunday.

"There is, unfortunately, a form of Turkish PEGIDA in Germany that we must treat the same way as the group we already know of," Cem Özdemir told the German newspaper "Bild am Sonntag."

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