Rebel forces in Libya say they have taken control of the coastal city of Sirte, in what would be a key strategic gain. Sirte has been controlled by forces aligned with Libyas UN-backed Government of National Accord (GNA) since the Islamic State (IS) militants were expelled in 2016. The rebel forces, loyal to Gen Khalifa Haftar, have been waging an offensive targeting the capital Tripoli. Full story on BBC...