PSNI : 'unacceptable' violence
13 July 2010 Last updated at 12:20 BST
Police in Northern Ireland say they will bring rioters to justice and have again appealed for calm after two nights of violent clashes in Belfast.
The Police Service of Northern Ireland has condemned the violence, describing it as "completely intolerable".
Speaking at a news conference, Chief Constable Matt Baggott praised officers involved in the protest.
Overnight violence erupted in nationalist areas of Northern Ireland after Monday's parades.