Oslo/Algeria: Militants attacked an Algerian gas plant operated by Norway's Statoil and BP with rocket-propelled grenades on Friday, causing no casualties or damage but forcing the facility to be closed as a precaution.
Algeria's energy infrastructure is heavily protected by the army especially since the 2013 militant attack on the In Amenas gas plant, also operated by BP and Statoil, during which 40 oil workers were killed.
Statoil said in a statement that the In Salah gas facility was hit by explosive munitions from a distance.
"In the early morning, three or four rocket propelled grenades hit a central processing facility, there were no casualties or damage reported," an industry source.
The Algerian army were controlling the area and pursuing the attackers.
BP said in a statement that the facility had been closed down as a safety precaution.
According to BP's website, In Salah started production in 2004 from three fields Krechba, Teguentour and Reg. In February, it announced the start up of development of the Gour Mahmoud, In Salah, Garet el Befinat and Hassi Moumene fields, to bring output to 9 billion cubic metres a year.
The 2013 In Amenas attack was carried out by militants linked to veteran Algerian militant Mokhtar Belmokhtar, who US forces say may have been killed in an air strike in Libya last year. Al Qaeda has denied he was killed.
Belmokhtar's group Al Murabitoun or "Those who sign in Blood" has been blamed for several attacks across the region. Al Qaeda in the Islamic Maghreb has also claimed recent attacks in the Ivory Coast, Mali and Burkina Faso.
Attacks and bombings in Algeria, one of Europe's main gas suppliers, have become rarer since the North African country emerged from a 1990s war with hardline fighters that killed around 200,000 people.
But Al Qaeda in the Islamic Maghreb, and its affiliates, and fighters allied with IS, are active in remote pockets of the country, mainly in the desert south and the mountains east of the capital Algiers.
Algeria and other North African countries are also increasingly worried about the rapid expansion of IS over their border in Libya, where the militant group has taken over the city of Sirte and attacked oilfields and ports.
Meanwhile, Russia will deliver 40 Mi-28NE attack helicopters to Algeria in line with a bilateral contract, Interfax news agency said on Friday, quoting a source in Russia's arms exporting bodies.
The Mi-28 helicopter, dubbed "Night Hunter" by the Russian military, is said by arms experts to be among the best in the world in its class. It is capable of carrying out missions day and night and in most adverse weather conditions.
The Mi-28NE modification is equipped with a dual-control system, which allows to fly the helicopter both from the pilot's cockpit and from the cockpit of the operator pilot who acts as an instructor.
The source quoted by Interfax gave no details about the helicopter contract with Algeria.