Migrant sex attacks will spark confrontation with Islam in Europe – intelligence chief
Patrick Calvar, chief of the Directorate General of Internal Security, told members of the French parliamentary commission: "We are on the brink of civil war."
He said that the situation in France is on such a knife edge that it could just take one more major Islamist terror attack to lead to a huge right-wing backlash.
Speaking to the leading French newspaper, Le Figaro, Mr Calvar said: "This confrontation I think it will take place.
"Even another one or two attacks and it will happen. It therefore behooves us to anticipate and block all these groups."
He said that he feared an inevitable confrontation between the far right and Muslims poses more of a threat than terrorism.
He said: "There will be a confrontation between the far right and the Muslim world."
At one point, Mr Calvar said: "Europe is in great danger, extremism is growing everywhere."
The fears are that the country could suffer an attack similar to the one that happened in Germany on New Year's Eve where a staggering 1,200 women were sexually abused in German cities, particularly in Cologne.
Many of the suspect perpetrators were migrants of North African origin.
The attacks fuelled anger in Germany, which came just months after Chancellor Angela Merkel opened the borders to more than a million migrants and refugees from the Middle East and North Africa.
Mr Calvar's comments have come as the former MI6 boss Richard Dearlove also said that Europe faced a "populist uprising" if Governments do not take control of the migrant crisis.