<span style="color: #222222;">The UN Security Council has called upon Libyan forces under Khalifa Haftar to halt their advance on Tripoli, warning the military move was putting Libya's stability at risk.</span><br />'' <br />'' <span style="color: #222222;">Haftar, the commander of the self-proclaimed Libyan National Army (LNA), launched an offensive on Thursday to take the capital, held by a UN-backed unity government and an array of militias.</span><br />'' <br />'' <span style="color: #222222;">German Ambassador Christoph Heusgen who holds the council presidency, told reporters following a closed-door meeting that the council yesterday called upon LNA forces to halt all military movements. </span><br />'' <br />'' <span style="color: #222222;">He said, the members of the Security Council expressed deep concern at the military activity near Tripoli which risks Libyan stability and prospects for UN mediation and a comprehensive political solution to the crisis.</span><br />'' <br />'' <span style="color: #222222;">The appeal for Haftar to halt his offensive was unanimously backed by the council, including Russia, which has supported the strongman.</span><br />''