Islamic State (IS) fighters have clashed with guards as they tried to enter Libya's oil port of Sidra.
Two members of the Petrol Facilities Guard militia, which is defending Sidra, were reportedly killed.
The militants are said to have been pushed back, but IS says it now controls Bin Jawad, 30km (19 miles) west of Sidra on the road from its stronghold in Sirte.
In December, France said IS was aiming to control Libya's oil wells.
IS, which has been operating in Libya for about a year, failed to take Sidra in an attack last October.
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