In Libya, Islamic State militants on Thursday claimed responsibility for another attack on an oil installation close to the country's Ras Lanuf terminal.

According to an engineer at the port and an energy official not less than two storage tanks from the Harouge Oil Operations Company had been set ablaze near Ras Lanuf.

The militants in a video released not long after the attack, threatened to aim for even more of the country’s oil installations.

“Today Es Sider port and Ras Lanuf, and tomorrow the port of Brega, and after the ports of Tobruk, Es Serir, Jallo, and al-Kufra”, IS fighter Abu Abdelrahman al-Liby said in the video.

Libya's oil industry has been battling with regular attacks, strikes and protests. A blast last week, south of the Ras Lanuf had hit a major oil pipeline which runs from the Tibisti and Bayda fields.

Meanwhile at the beginning of January, the militants attacked Ras Lanuf and Es Sider terminal, killing 18 guards and setting fire to seven oil storage tanks, ABC news reports.

Anita Fatunji