Forces fighting ISIS in Libya claim to have taken the port of Sirte as troops battle to drive militants out of their biggest stronghold outside Syria and Iraq, The Guardian reported.

Militias aligned with the new Government of National Accord (GNA), the Libyan UN-backed government, were fighting ISIS to gain control over Ouagadougou conference complex. A source from the operations room in Misrata said fighters from the front line in the south of Sirte had looped round to the seafront to capture the port, which lies east of the city center, according to Trade Arabia.

Previously, Libya’s Petroleum Facilities Guard (PFG), a force that controls oil terminals in eastern Libya, has previously captured a town near the country’s biggest oil port of Es Sider following clashes with militants.