President Mary McAleese has scrapped plans to visit a loyalist part of Belfast tomorrow because of recent rioting in the area.
As rival politicians clashed over her planned meeting with Northern Ireland chief constable Sir Hugh Orde, Áras an Uachtaráin revealed a late change to her itinerary because of a new outbreak of violence in the Shankill Road area.
She had been due to meet staff and children at a primary school, but will now see them in another part of the city.
Belfast-born Mrs McAleese was forced to pull out of a visit to the Shankill earlier this year after she was criticised for making controversial comments about sectarianism in the Protestant community.
On Monday, there was serious rioting in the Woodvale area of the Shankill involving gangs of masked youths following police raids in the area.
Lorries were hijacked and burnt and police Land Rovers attacked with petrol and paint bombs, stones and bottles as youths responded to the security operation in connection with an Ulster Volunteer Force show of strength on Saturday.
The violence was not connected with her visit, and among the areas she will be visiting tomorrow will be the loyalist Taughmonagh estate.
The change of plans was announced as rival members of the Northern Ireland policing board clashed over her meeting tomorrow with the chief constable.
The SDLP's Alex Attwood defended the planned meeting. But the DUP's Ian Paisley Jnr questioned the reasons behind the trip and claimed Sir Hugh should have consulted the Policing Board.
West Belfast MLA Mr Attwood said: "Increasing numbers of people don't take Ian Jnr seriously.
SDLP's Alex Attwood
"Mary McAleese has done more than virtually any other citizen to try to build bridges on the island of Ireland.
"People appreciate her work. They do not see her in any way in the terms outlined by Ian Jnr."
A spokeswoman for the president confirmed a meeting with Sir Hugh would go ahead.
Following the visit to the Police Service of Northern Ireland headquarters, Mrs McAleese will meet staff, pupils and teachers of Edenbrooke Primary School at a special reception in a south Belfast hotel.
This will be followed by visits to Taughmonagh Primary School and Aquinas Grammar School. President McAleese will then visit Nazareth House Care Village on the Ravenhill Road before returning to Dublin.