German minister slams Erdogan's 'interference' in Germany's vote
"That is an unprecedented act of interference in the sovereignty of our country," Gabriel told the RedaktionsNetzwerk media group on Friday.
"Erdogan's interference in Germany's electoral campaign shows that he wants to incite people in Germany against each other," he said.
Gabriel urged Germans to push back by turning up in strength at the polls and voting for parties that champion democracy.
"Let's show those who want to play us against each other that we will not participate in this evil game," he said.
Erdogan's move also did not go down well with the Turkish community.
Atila Karaborklu, the co-chairman of Germany's Turkish Community association, accused Erdogan of "seeking to divide German society".
His aim is "to hurt German democracy," charged Karaborklu.
Erdogan on Friday called on Turks living in Germany not to vote for the two parties in Chancellor Angela Merkel's ruling grand coalition or the Greens in next month's legislative elections, calling them "enemies of Turkey".
Upping the stakes in a intensifying row with Berlin, Erdogan said ethnic Turks in Germany should not cast their ballots either for Merkel's Christian Democratic Union (CDU), Gabriel's Social Democratic Party (SPD), or the Greens.
"I tell all my kinsmen in Germany... not to vote for them. Neither the Christian Democrats nor the SPD nor the Greens. They are all enemies of Turkey," Erdogan told reporters in Istanbul in televised comments.
He accused the SPD and CDU in the election campaign of playing a game of "the more you beat up Turkey, the more votes you get".
"You need to support political parties there now which do not display enmity to Turkey. Whether it's the first party or the second party, it does not matter, support them," he said.
"For all our citizens living in Germany this is now a struggle of honour," he added.
Tensions have spiralled in recent months between Germany and Turkey, in one of the most significant crises in years between two NATO allies with long-standing historical links.