Clashes erupt in Libya's Tripoli despite ceasefire / UN calls for calm as fighting resumes in Libya's Tripoli / Heavy gunfire, clashes in Libya's Tripoli after killing of militia leader / Tripoli-based officials say military operation in Libya's capital over / Lavrov discusses Libyan settlement with top diplomat from Tripoli government / At least 10 killed in attack in Libya's capital Tripoli / The long history of Derna, Libya's martyred city / How a Libyan city was washed away / Libya: Fierce clashes in Tripoli highlight ‘precarious’ situation / UAE expresses concern over developments in Libya's Tripoli; calls for dialogue, cease hostilities