NIS, Serbia (Reuters) -Serbia on Sunday completed the interconnector to a pipeline in Bulgaria which would allow the Balkan country to diversify its gas supplies and reduce its dependence on Russia. The launch of the interconnector will make operational the pipeline from the town of Novi Iskar in Bulgaria to the Serbian city of Nis, allowing Belgrade to access gas from Azerbaijan and LNG terminal in the Greek port of Alexandroupolis. The capacity of the pipeline on the Serbian side is 1.8 cubic metres a year, which accounts for 60% of the country’s annual gas needs. The European Commision dona…