Northern Ireland has experienced two nights of serious disorder following a brutal knife attack in Belfast, with anti-immigrant violence spreading across the city and beyond, stoked in part by a wave of false information online. The suspect, Hadi Alodid, a 30-year-old Sudanese asylum seeker who entered the UK via Ireland, has been charged with attempted murder after attacking Stephen Ogilvie with a kitchen knife, blinding him in one eye and inflicting severe wounds to his head, face and back. Ogilvie's family confirmed he is in stable condition, and issued a statement saying they "do not want this terrible tragedy to be used to divide people or fuel hostility," adding that they believe migrants "make a deeply valuable contribution to our country."

In the aftermath of the attack, masked protesters clashed with riot police, set fire to vehicles and homes believed to house immigrants, and pelted officers with bricks and stones. Water cannons were deployed in Carrickfergus, outside Belfast, and two officers were injured by fire bombs. Northern Ireland Secretary Hilary Benn condemned what he called "racist thuggery," and politicians across Northern Ireland's power-sharing government denounced the violence. More than two dozen people were displaced from their homes. Among those caught up in the unrest were two Ugandan care workers and students, housemates in west Belfast, who sheltered in their home as neighbouring houses burned and masked men gathered outside. A Sudanese refugee and father of four told journalists he was considering leaving the city.

The disorder was significantly amplified by online misinformation. Videos shared millions of times falsely depicted scenes from Russia and a year-old incident in the Northern Irish town of Ballymena as evidence of ongoing Belfast unrest. Far-right figures, including Stephen Yaxley-Lennon — better known as Tommy Robinson — and tech billionaire Elon Musk, shared or amplified misleading content. One widely shared post falsely claimed the victim had died from decapitation at the hands of a Somali man; another used an unrelated photograph to identify him. Authorities and the victim's own family were forced to correct the record publicly.

The violence has also revived debate about the Common Travel Area (CTA), the arrangement dating to 1922 that allows free movement between the UK and the Republic of Ireland. Alodid had travelled to Dublin from Paris before crossing into Northern Ireland. Some politicians described the CTA as an immigration "loophole," but legal experts point out that the UK already possesses broad powers to conduct immigration checks near the border and runs an intelligence programme, Operation Gull, to police cross-border movement. The issue, analysts argue, is one of resourcing and enforcement rather than a lack of legal authority. Northern Ireland, for context, has fewer than 2,400 people receiving asylum seeker support among a population of nearly two million — the lowest share of ethnic minority residents of any UK region.

The Belfast riots echo unrest that swept England and parts of Northern Ireland two years ago following a mass stabbing near Liverpool, and come weeks after disorder in the southern English city of Southampton. In each case, crimes involving non-white suspects and white victims were exploited by far-right networks to drive anti-immigrant and anti-Muslim narratives. Prime Minister Keir Starmer has criticised those "trying to interfere in our democracy and seeking to stir up division," while policing chiefs have warned that online disinformation now sits "right at the centre" of public disorder challenges. The border question also carries particular sensitivity in Northern Ireland, where the free flow of people across the island is a foundational element of the 1998 peace accord that ended decades of conflict known as the Troubles, which left nearly 3,600 people dead.