Forces loyal to Libya’s rival House of Representatives (HoR) assembly first shelled then conducted air strikes on a Turkish cargo ship attempting to leave the area on Sunday killing one officer aboard the vessel.
The Cook Islands chartered Tuna-1 reported Sunday that it had come under fire by HoR forces off the coast of Tobruk where the assembly operates.
The vessel also reported a casualty and that some crew members were also wounded in the attack.
"We condemn strongly this contemptible attack which targeted a civilian ship in international waters and curse those who carried it out,” read a statement released by the Turkish Foreign Ministry on Monday.
The vessel was carrying plasterboard supplies from Spain to Tobruk.
The attack on the Tuna-1 marks the second attack on a foreign civilian vessel by HoR forces since the assembly was founded and began a military campaign to take control over Libya in August.
In January HoR forces conducted an air strike on a Greek vessel chartered to bring oil supplies to cities suffering power outages. The attack killed two crew members.
The HoR has repeatedly threatened to shoot down civilian Turkish Airlines (THY) flights approaching Libya in the past despite THY being the only international operator conducting flights to western Libya between August and March.