Video: Second night of Northern Ireland riots Up to 1,600 pro-British loyalists, enraged at a decision by nationalist councillors to remove the Union Jack flag from above the entrance of Belfast City Council, battled again with police, fifteen of whom were injured after the council decision on Monday. Police fired plastic bullets when they came under attack with bricks, bottles and other missiles in Carrickfergus, county Antrim, a few miles outside Belfast. Four people were arrested, a police spokesman said and police officers were injured, though he declined to give a number. An office belonging to the centrist, nonsectarian Alliance Party, whose support enabled the nationalists' vote to bring down the British flag, was also ransacked and set on fire during the rioting, according to a spokesman for the fire services. One of the party's members of parliament for Belfast, Naomi Long, said earlier on Wednesday that she had received death threats over the council's decision. The violence was condemned by pro-British unionists, whose loss of their Belfast City Council majority last year prompted the vote to remove the flag on all but 17 days of the year after it had flown continuously for more than 100 years. Ms Clinton, whose husband helped broker a 1998 peace deal that largely ended 30 years of sectarian violence in which more than 3,600 people died, is meeting political leaders on Thursday and Friday in bedfast where she ends her five-day European.