Fire at storage tank at Libya's Es Sider port has spread to more oil tanks - officials
The first oil tank was hit during clashes between armed factions allied to Libya's competing governments over control of the country's biggest oil port, located in the east.
Es Sider and the nearby Ras Lanuf port have been closed since the fighting broke out two weeks ago.
(Reporting by Ayman al-Warfalli and Ulf Laessing; Editing by Hugh Lawson)