A committee of peers yesterday decided to ban Sinn Féin's four Westminster MPs from entering the House of Lords, including the debating chamber, the bar and the library.
The Lords Office committee will report on its decision to refuse entry to the Sinn Féin president, Mr Gerry Adams, the Northern Ireland Education Minister, Mr Martin McGuinness, Mr Pat Doherty and Ms Michelle Gildernew later today.
The committee's report, which upheld a previous ruling by the Lords administration committee that the Sinn Féin MPs should be permanently excluded from the second chamber, will be debated at a later date in a full session of the House of Lords.
The Labour leadership and Labour peers had wanted to extend Westminster rights to the Sinn Féin MPs, who refused to take the oath of allegiance to Queen Elizabeth, as a positive move to assist the political process.
But the House of Lords reiterated its opposition to the plan following angry protests from Conservative peers.
Opponents said such a move would have meant the MPs had privileges in the Lords which they were denied in the Commons.