Concerns are mounting that a banned Orange Order march that triggered four days of rioting last week, largely in Belfast, will turn into an ongoing weekly protest.

Loyalist sources say Orangemen plan to hold continual demonstrations at police lines on Woodvale Avenue – the point from where they are prevented from marching past the republican Ardoyne district.

The Police Service of Northern Ireland was preparing for another round of disorder on Saturday after an application by the Orange Order to parade past Ardoyne was again rejected by the body that adjudicates on controversial marches in the province.

An extra 600 police officers from England, Scotland and Wales were still in Northern Ireland to back up the PSNI during the marching season.

The Parades Commission refused an application on Thursday from the Orange Order to march from the Shankill Road to Ligoneil via the stretch of road they were allowed to march through on the morning of 12 July, but banned from later that evening.

The order's tactic is to repeat the strategy of Portadown's Orangemen, who kept applying to march along the nationalist Garvaghy road area of the Co Armagh town during the Drumcree disputes of the 1990s.

Saturday's march will involve 500 Orangemen, three bands and supporters, who will be blocked by police lines from passing Ardoyne.

A spokesman for the order asked troublemakers to stay away from the protest, pointing out that "violence is counterproductive and serves no purpose, only damaging the cause of Orangeism".

However, Sinn Féin, the SDLP and two nationalist residents' groups in Ardoyne appealed for the order to call off the protest parade, fearing it would ignite a further round of disorder across Belfast.

More than 70 police officers, three of them from Britain, were injured in the violence alongside an undisclosed number of civilians. Police fired plastic bullets and deployed water cannons to quell attacks on their lines in various parts of Belfast, where they were attacked with blast bombs, petrol bombs, bricks, bottles, stones, fireworks and even a ceremonial sword.