UN calls for calm in Tripoli as violence erupts following militia leader's assassination.

The UN has called for de-escalation in Tripoli after armed clashes erupted following the reported assassination of a key militia leader, Abdel Ghani al-Kikli. The violence has led to military mobilization and the deployment of tanks, with schools closed and residents urged to stay indoors. Libya has been unstable since 2011, split between eastern and western governments, and the conflict threatens oil exports and regional stability.