By Conor Humphries BALLYMENA, Northern Ireland (Reuters) -Violence erupted in different parts of Northern Ireland for the third successive night on Wednesday, with masked youths starting a fire in a leisure centre but unrest in the primary flashpoint of Ballymena was notably smaller in scale.

Rioters clashed with police in Ballymena and across County Antrim as masked groups set fire to a leisure center in Larne, where families had been temporarily settled in emergency housing.