The "yellow vest" demonstrators against Macron government policies, largely rural French clad in roadside safety vests, have blocked roads and clashed with police. Two people have been killed and hundreds injured. More than 100,000 people were drawn to the protests across France this past Saturday.
One poster circulated among ISIS supporters online, showing a terrorist in front of the Eiffel Tower, urged jihadists to make "an appointment with an important event -- wait until Sunday." It included the "Just Terror" catchphrase that ISIS uses for lone jihad.
Another depicted a person wearing a black ball cap and sweatshirt looking out a window, with news photos of the "Gilets jaunes" protests above, and similarly warned of a Sunday attack: "Attendez -- Just Terror -- sera chez vous, Dimanche, en France." Yet another warned of a "bloody" Sunday.
And another image showed crosshairs superimposed on yellow-vested protesters on the Champs-Elysées: "O supporter of the caliphate in Europe and more particularly in France: Attack."