The governments of America, France,
Germany, Italy, Spain and Britain issued a joint statement on Sunday condemning
"barbaric" acts carried out by the Isis group in Libya.
Media outlets in Rome have been told to tighten security against possible attacks by Islamic extremists after 12 people working for the French satirical magazine, Charlie Hebdo, were shot dead last week.
An estimated 500 people gathered outside the French embassy in Rome on Sunday to show their support in the wake of the attacks against the satirical magazine, Charlie Hebdo, in Paris last week, while calling on Europeans to come together in the face of a threat that is no longer "far away from home".
The foreign ministers of Italy, Germany and France on Tuesday condemned anti-Semitic slurs and violence at pro-Palestinian demonstrations in Europe and pledged to take firm action.