Italian right-wing activists and politicians, including Benito Mussolini's great-grandson, have accused Facebook of "discrimination" after their reports were apparently suspended.
"I find it unacceptable that Facebook has closed my personal profile just because my surname is Mussolini," said the great-grandson of fascist dictator Caio Giulio Cesare Mussolini on Monday, while threatening legal action against the social network.
Caio Mussolini announced over the weekend that he was competing in the European elections in May as a candidate for far-right Fratelli d Italia, thus becoming the third descendant of the dictator to enter the Italian political arena.
His second cousin, Alessandra Mussolini, is already a member of the European Parliament and risks running again in May. His sister Rachel is a city councilor in Rome.
Rachele Mussolini said: "Gaius, like all Mussolini's, found himself persecuted by [Mark] Zuckerberg thought police.
"I find this to be shameful, undemocratic and politically incorrect. I am indignant and embittered by the discriminatory attitude that Facebook continues to adopt towards my family members, as well as towards me".
In an interview with the Italian newspaper Il Fatto Quotidiano, Caio Mussolini, 51, calls himself "a post-fascist who refers to those values in a non-ideological way".
He was a naval officer for 15 years, then a manager for the largest defense contractor in Italy, Finmeccanica, before turning to politics.
The neo-fascist party CasaPound said on Tuesday that its leaders' Facebook accounts were also closed by the company.
"Facebook has begun to systematically eliminate the personal accounts of the main representatives of CasaPound, just four days after the announcement that we will participate in the European elections on May 26 with one of our candidates," the group wrote in a note.
Both the Caio Mussolini and CasaPound Facebook profiles were subsequently reactivated. Facebook did not immediately respond to a request for comment.
Last week, hundreds of CasaPound activists took to the streets in a suburb of Rome in a violent protest against 70 Roma, including 33 children and 22 women, who would be temporarily transferred to a reception center in the area.
In a video published by the Republic, protesters were shown to trample on food for Roma, and some may be heard shouting: "They must die of hunger".
CasaPound has more than 275,000 followers. His secretary, Simone Di Stefano, served as prime minister in the previous general election. In a 2011 interview with the Guardian, he described the trademark of Mussolini's fascism as "our point of reference, a vision of the state and the economy, and the concept of sacrifice".