One of Libya’s rival administrations convened for the first time on Thursday in the southern province of Sabha, vowing to end deepening political divisions. The meeting, far from the capital Tripoli, was the latest sign that Libya remains mired in divisions, months after a UN-supported election that was supposed to unify the country in December failed to materialise. In recent months, the oil-rich country has become once again split between two administrations, one in Tripoli led by Prime Minister Abdul Hamid Dbeibah and another by Fathi Bashagha, a former interior minister who was elected pre…