Tight security will surround the home of Gaelic games this weekend for the historic rugby clash between Ireland and England at Croke Park.
As final preparations get under way at GAA headquarters, fans travelling to Saturday's Six Nations Clash are being warned they will face rigid searches with all items that can cause an injury confiscated.
Protesters objecting to the English team playing in the ground are also being urged to contact gardaí in advance.
Republican Sinn Féin (RSF) are organising a demonstration in protest at the flying of the English flag and playing of the national anthem God Save the Queenwhile the Six Counties remains under what it describes a "occupation".
A statement on its website says: "We protest at the presence of the England rugby team in Croke park because they represent a country which continues to occupy by force the north eastern part of Ireland. We don't want apologies, England. Give us back our country."
Protesters are asked to assemble at the junction of North Circular Road and Summerhill Parade near the Sunset House pub at 3.30pm.
The party also objects to England's presence at a venue where 14 GAA supporters were shot dead by the Black and Tans parmailitary police force in 1920.
More than 82,000 supporters will descend on Croke Park for the sell-out fixture. Stiles will open at 3.30pm for the 5.30pm kick off, with supporters urged to arrive early.
Supervised car parks will be available around Croke Park at Clonliffe College, Clonliffe Road, Drumcondra, and motorists whose cars are parked illegally or improperly will have their vehicles clamped or removed.
There are no parking facilities for people with special needs inside the Garda cordon, although a number of designated parking places for this purpose within the car park at Clonliffe College.
Private buses can drop supporters off and park during the event on Mountjoy Square.
PA