The United Nations Security Council has called on militia forces commanded by Khalifa Haftar to halt their advance on the Libyan capital Tripoli. Haftar's troops launched their offensive on Thursday and have battled their way to the south of Tripoli, which is held by a UN-backed unity government and an array of militias. There are now fears of a renewed civil war in Libya, which has been riven by violence and division since long-time ruler Muammar Gaddafi was overthrown in 2011.
UN Secretary-General Antonio Guterres was in Libya this week. After meeting Haftar, he said he was leaving Libya "with deep concern and a heavy heart."