Key facts
- A man has been arrested in Belfast, Northern Ireland.
- The arrest followed a violent stabbing incident.
- Social media video appears to show an attempted beheading.
- Northern Ireland leaders are appealing for calm.
Police in north Belfast have arrested a Sudanese man on suspicion of stabbing and seriously wounding another man. Footage shared on social media depicts a man repeatedly stabbing another individual in the head with a knife, an act that observers suggest may have been an attempted beheading. Northern Ireland leaders are appealing for calm following the incident.