UK PM urges calm as Belfast protesters hijack bus, attack police Crowds of youths in a pro-British area of Belfast set a hijacked bus on fire and attacked police with stones in the latest of a series of nightly outbreaks of violence that began last week. UK’s Johnson condemns violence in Northern Ireland after a week of riotingCrowds of youths in a pro-British area of Belfast set a hijacked bus on fire and attacked police with stones in the latest of a series of nightly outbreaks of violence that began last week. In Pictures: Violence continues at Belfast protestsNorthern Ireland’s power-sharing government appeals for calm following more than a week of nightly violence. Bus torched in more Northern Ireland violence as British and Irish leaders call for calmParts of Northern Ireland saw their sixth consecutive night of violence Wednesday as unionists and nationalists clashed with police and each other. Northern Ireland government to meet as riots escalateNorthern Ireland's devolved government will meet to be briefed on nightly outbreaks of street violence that escalated on Wednesday with sectarian clashes, continued attacks on police and the setting alight of a hijacked bus. Northern Ireland government to meet as riots escalateNorthern Ireland's devolved government will meet to be briefed on nightly outbreaks of street violence that escalated on Wednesday with sectarian clashes, continued attacks on police and the setting alight of a hijacked bus.