The EU has called on forces allied to rival Libyan governments to return to the negotiating table and end the conflict by political means. But the entry of Russia and Turkey into the conflict could complicate the matter.
Last week, the US State Department said it was "very concerned" by growing hostilities and reports of Russian mercenaries supporting the eastern-based Libyan National Army (NLA) under the guise of private security contractors.
"We see the Russians using hybrid warfare, using drones and aircraft," a senior US State Department official told Reuters news agency. "With the increased numbers of reported Wagner forces and mercenaries on the ground, we think it's changing the landscape of the conflict and intensifying it."
Meanwhile, Turkey has approved a new security deal and separate maritime agreement effectively allowing it to provide military assistance to the Tripoli-based government, which is widely recognized by the international community.
The NLA, led by Saudi-supported Libyan strong-arm Khalifa Haftar, has warned against the Turkish measures. A senior lawmaker of the eastern-based government told the Associated Press that Turkey's support is a "provocation" and would "prolong the conflict and threaten North African nations."
Libya plunged into chaos in 2011 after dictator Moammar Gadhafi launched a brutal crackdown against anti-government protesters. NATO-backed rebels eventually defeated the regime and captured Gadhafi, who was killed in captivity. Since then, warring factions have fought a bitter war to maintain power in the North African country.