French President Francois Hollande said on Wednesday that it is "intolerable" that French Jews would have to hide their skullcaps out of fear of attack, AFP reported.

"It is intolerable that in our country citizens should feel so upset and under assault because of their religious choice that they would conclude that they have to hide," Hollande was quoted as saying.

The president's comment comes as the French Jewish community struggles to come to terms with calls from some religious authorities to abandon the kippa while in public over safety concerns.

Concerns among the country's Jews has also found fertile ground in the wider population, some of whom took to social media recently, calling for all of France to wear kippot on Friday.

The social media campaign is in solidarity with the Jewish community after a string of anti-Semitic attacks.

A Jewish man wearing a kippa was assaulted with a machete in Marseille on Monday, allegedly by a 15-year-old Muslim radical. He sustained minor injuries.

A Jewish teacher was also stabbed and seriously injured in November by a man who hurled insults at him along with two others, one of whom was wearing a T-shirt with the logo of the Islamic State terrorist group.