Trouble flared in central Belfast on Friday night as loyalist youths clashed with riot police around the city's Shaftesbury Square.
The latest unrest comes on the same day US Secretary of State Hillary Clinton visited Belfast, urging for a halt to recent violence.
More top news
Endris Mohammed must serve a minimum of 33 years after killing his two children with a petrol-soaked cloth before trying to kill his wife.
Three people who had been arrested on suspicion of murder have been released without any further action.
Zimbabwe's ruling party is to hold a meeting after Robert Mugabe ignored an ultimatum to resign or face impeachment.