By Peter Murphy and Joe Jackson, AFP

Calls for calm as bus torched, roads blocked in protests over 'sickening' Belfast stabbing

A building is set alight in the Sandy Row area of Belfast city centre, Northern Ireland.

Protesters torched a bus and other vehicles and blocked arterial roads in Belfast a day after a brutal stabbing by a Sudanese suspect that sparked anti-immigration protests.

Northern Irish police and British authorities issued repeated calls for calm earlier on Tuesday following the attack captured in a gruesome video that shocked the country.