A knife attack in Belfast has left a man seriously injured, prompting calls for calm from police and politicians amid heightened political discourse on immigration and policing in the UK.

<img alt="A police car and police tape are shown in the foreground of a residential street." height="349" src="https://i.cbc.ca/ais/26c796eb-0fcb-4cc6-a9e5-13cabc80d32f,1781008574974/full/max/0/default.jpg?im=Crop%2Crect%3D%280%2C260%2C5000%2C2812%29%3BResize%3D%28620%29" title="Police work at the scene of a stabbing on Kinnaird Avenue in north Belfast, Northern Ireland, on June 9, 2026. Northern Ireland police said Tuesday they had arrested a man following a &quot;stabbing incident&quot; in Bel...