Authorities in Belfast are urging calm after an attack that sparks tensions amplified through social media. Multiple outlets report that a Sudanese man—who has been granted leave to remain in the UK until 2028—has been arrested on suspicion of attempted murder. The reports indicate that the arrest follows the incident in Belfast and that officials are concerned about the spread of potentially inflammatory content online. While details of the alleged attack’s circumstances are not expanded in the provided summaries, the focus across sources is on the ongoing investigation and the steps being taken in response to public reaction. The emphasis on “appeals for calm” reflects concern that online commentary could inflame community tensions. The sources also align on the key point that the arrested person’s immigration status includes leave to remain until 2028, and that the arrest is linked to suspicions of attempted murder. Further developments are expected as police inquiries continue and as authorities manage the broader response to social media activity.