Two Jewish residents of Paris were assaulted on the street by a gang of about 40 people last Friday.

The gang was identified as members of Gaza Firm, a pro-Palestinian group involved in the Boycott, Divestment and Sanctions movement, according to JSSNews, which first reported the attack.

The attack took place on the Boulevard Voltaire in Paris's 11th arrondissement, the site of the 2006 kidnapping of Ilan Halimi, a French Jewish phone salesman who was tortured and starved to death.

A plaque put up in memory of Halimi was also defaced this weekend.

Interior Minister Bernard Cazeneuve said in a statement Sunday that prosecutors had opened an investigation into the damage to the monument in the Paris suburb of Bagneux.