"Please, don't give us lessons in human rights and democracy," the minister yesterday said, as he spoke to a crowd of some 200 Turkish government supporters gathered at the residence of their country's consul in the northern city of Hamburg.
The comments came after German local authorities banned rallies that Turkish officials were due to address to raise support among expatriate voters for a referendum in April on boosting President Recep Tayyip Erdogan's powers.
Local authorities had called off a rally in Hamburg where Cavusoglu was due to speak, citing fire safety concerns.
Police said about 250 opponents of Erdogan gathered near the consulate, some of them brandishing signs that read "Dictator Erdogan -- Hayir," meaning "No" in Turkish.
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Cavusoglu said he would meet today with his German counterpart Sigmar Gabriel, whom he called a "friend", at a breakfast in Berlin and visit a tourism fair.
Erdogan escalated the crisis over theweekend, likening the cancellations to "Nazi practices," drawing a sharp response from Berlin.
He also warned Germany not to block him from making an appearance if he wished.
Chancellor Angela Merkel's office firmly rejected the Nazi jibe as "absurd and out of place".
Cavusoglu said the rally cancellations were "unacceptable" and reminiscent of practices in the run-up to World War II.
"We are in a state of great fear," Cavusoglu said. "If we cannot stop the advance of racist parties, Europe will head (back) to the pre-World War II period."
European Commission President Jean-Claude Juncker yesterday condemned Erdogan's "Nazi" comments in an interview with Luxembourg's RTL television.
"I am surprised by what I hear from Turkey. When the Turkish president and his foreign minister say that today's Germany is worse than Nazi Germany, I can't accept it," the former Luxembourg prime minister said.
Turkish EU Affairs Minister Omer Celik spoke yesterday with Michael Roth, state secretary at Germany's foreign ministry, sources in Celick's ministry said.
Cavusoglu accused countries "which we deem as friends" of openly taking sides, slamming it "unacceptable" and "embarrassing".