The DUP has accused republicans of waging a sustained campaign of low-level violence against Protestants following a paint-bomb attack on a house in Hesketh Park, in north Belfast, on the loyalist side of the peaceline.
DUP councillor Mr Nelson McCausland claimed republicans were attempting to derail cross-community discussions about the situation in Ardoyne.
In June, loyalists prevented Catholic pupils attending Holy Cross primary school from entering the building by the front door.
The school is due to reopen in a fortnight and negotiations have been taking place to reach a resolution. A window was broken in the Hesketh Park house and a paint bomb was hurled inside.
"It seems that Sinn Fein/IRA want to destabilise the situation further and prevent an accommodation being reached about the Holy Cross School and the many other issues in the area," said Mr McCausland.
"There has been a pattern of sectarian attacks on Protestant homes in this area over the past few weeks and they bear all the marks of an orchestrated campaign. The attacks have been directed against vulnerable homes on the edge of Protestant communities and they have been strategic and systematic.
"It is clear that Sinn Fein/IRA do not want the problems resolved. Accommodation does not suit their long-term aim of driving Protestant communities out of north Belfast." Mr McCausland said that, rather than scaling down the RUC presence in the area, more resources needed to be directed towards protecting Protestant communities.
Meanwhile, Sinn Fein has accused the UDA of involvement in two security alerts in west Belfast yesterday. Two suspect devices were discovered in separate incidents in the area. A device was thrown into the garden of a house in Tullymore Gardens in Andersonstown early yesterday.
Sinn Fein said the device was not found for four hours, placing passers-by at risk. The party claimed the house belonged to a prominent community worker. The second device was discovered on the Hannahstown Hill Road shortly afterwards.
Sinn Fein Assembly member, Ms Sue Ramsey, said: "It is clear that those who placed these devices did not care who was injured by them. The past number of months have seen a sharp increase in attacks against the nationalist community.
"These attacks are part of an orchestrated campaign. I would call upon those with influence within the loyalist community to call upon the UDA to end these attacks." Ms Ramsey also urged nationalists to be vigilant.