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.
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Médecins Sans Frontières says at least 6,700 of the deaths have been attributed to violence - including 730 children aged five or below.