PSNI Chief Constable Matt Baggott said that some of the violence was intense and there was t.
It was fortunate someone was not seriously injured, he claimed, adding that the situation in some areas was very tense.
There has to be a collective voice to bring this to an end.
More top news
Nearly 300 staff have been axed at Russell Hume after the meat supplier collapsed into administration.
What would the Colonel say? KFC been forced to shut a number of its outlets across the UK after running out of chicken.
A former Birmingham University academic has been jailed for 32 years after abusing and blackmailing more than 40 victims online.