Racist riots break out across the United Kingdom after a video of a knife attack circulates online in Belfast, Northern Ireland. According to the reports, violence starts in Belfast on Monday and then spreads to other parts of the UK. The unrest is described as racist in nature and involves rioting in multiple locations.

UK Labour leader Keir Starmer comments on the situation, stating there will be “no tolerance” for rioters. The reports do not provide further confirmed details about the specific attack beyond the existence of a video that is linked to the subsequent unrest.

Overall, the sources describe a sequence in which an online video of a knife attack triggers racialized violence beginning in Belfast and expanding across the UK, prompting public warnings from senior political leadership. Authorities and local officials are not described in these accounts, and the reports focus on the spread of rioting and the political response.