 The group distance themselves from the hooligan nature of other groups, such as the F-side and VAK410, but are known in Dutch media for their Tifosi activity, and for the manner in which they deliver messages revolving around Ajax current events.North Up Alliance and the South Crew are also the two groups at Ajax responsible for the graffiti pieces that are found inside the tunnels of the Amsterdam Arena, from the players entrance to the locker rooms.Ajax is popularly seen as having "Jewish roots" and in the 1970s supporters of rival teams began taunting Ajax fans by calling them Jews.