PSNI Assistant Chief Constable Will Kerr confirmed Loyalist paramilitaries have been orchestrating some of the violence seen in the past 24 hours.
We appeal to those who plan to come into the city centre to protest to stay away and let people get on with every day business such as Christmas shopping.
We are also warning anyone who does engage in criminal activity that they will face the full rigours of the law.
Violence has serious and unwanted consequences for us all and we will robustly investigate all incidents.
Today I am urging everyone to be calm, take a step back and think about how this violence is affecting not just their own communities but the whole of Northern Ireland.
More top news
The M20 in Kent is shut between junctions 10 and 9 of the London-bound carriageway near Ashford. A body was found there last night.
In a night of violence in Camden, two young men have lost their lives as knife crime continues to haunt the capital.
The profit hike comes despite a mammoth £1.7 billion hit from the payment protection insurance (PPI) mis-selling scandal last year.