The Northern Security Minister, Mr Adam Ingram, met police and security advisers yesterday afternoon to consider the situation after Saturday's violence and shootings.
Mr Ingram said the British government would "be seeking a full account from the RUC and will consider, in that light, what steps would be appropriate".
Meanwhile, the Ulster Democratic Party chairman urged calm among all involved. "The irony of all this was that there was some development in relationships between the UVF and UFF last week, I'm led to believe, and unfortunately this has knocked us way back," Mr John White said.
The homes of Mr Gusty Spence, the former Ulster Volunteer Force commander in the Maze prison, and another senior Progressive Unionist Party member were among those attacked on Saturday.
Mr Spence said he was appealing to "decent, honest people from whatever organisation, especially the UDA, to knock this on the head and stop it".
In a later statement, the Northern Secretary said the situation in the North remained "potentially dangerous". Mr Mandelson said that he had asked the RUC to report into "every aspect" of Saturday's events.
An NIO spokesman said that he was sure this report would look into whether any of those involved were in breach of the prisoner release section of the Belfast Agreement.