At the weekend, Felix Klein, the country's commissioner on anti-Semitism sparked uproar when he said in an interview with the Funke regional press group that he could not "advise Jews to wear the kippa everywhere all the time in Germany."

Israeli President Reuven Rivlin voiced shock at Klein's warning and said it was a "capitulation to anti-Semitism" and evidence that Jews are unsafe in Germany.

Late Monday, Klein reversed course after Chancellor Angela Merkel's spokesman intervened.

"The state must see to it that the free exercise of religion is possible for all... and that anyone can go anywhere in our country in full security wearing a kippa," Steffen Seibert told a press conference.

In his latest statement to Funke, Klein said: "I call on all citizens of Berlin and across Germany to wear the kippa next Saturday if there are new, intolerable attacks targeting Israel and Jews on the occasion of al-Quds day in Berlin."