A warplane has bombed a Greek oil tanker in the port of Darnah, eastern Libya, killing two crew members, Greek authorities have said.
The Greek Foreign Ministry said in a statement on Monday that it condemned the air attack against the Araevo tanker which took place a day earlier, which left a Greek and a Romanian dead out of 26 crew members and two other people injured.
The ministry said it was in contact with Libyan authorities, UN special envoy for Libya Bernadino Leon and the High Representative of the European Union for the Foreign Affairs and Security Policy, Federica Mogherini, regarding the attack and would investigate it.
A Libyan military spokesman told the BBC the attack was carried out by the Libyan air force after the ship's movements aroused suspicion.
Oil-rich Libya has been dogged by political instability since the 2011 ouster and death of leader Muammar Gaddafi.
A group of militants in the eastern city of Darnah has reportedly sworn allegiance to the self-proclaimed Islamic State of Iraq and al-Sham (ISIS) militant group as fighting rages across Libya.