FILE - This is a April 19, 2005 fiel photo released by Statoil via NTB scanpix, shows the Ain Amenas gas field in Algeria, where Islamist militants raided and took hostages Wednesday Jan. 16, 2013. (AP Photo/Kjetil Alsvik, Statoil via NTB scanpix, File)

Algiers - Two Algerian security guards were killed and seven injured in an attack by suspected Islamist militants on a gas pipeline, the country's El Watan daily reported Monday.

The attack took place on Sunday night in Djebahia, in northern Algeria, just days after a mass hostage-taking at a gas complex.

A group of militants attacked the guards' vehicles with homemade mortars, the report said, citing unnamed security sources. The guards reportedly managed to hold off the attack after an hour-long gunbattle.

Algeria is still reeling from the bloody four-day standoff at In Amenas gas complex, where a group linked to a North African franchise of al-Qaeda took scores of foreign workers hostage.

Thirty-seven expatriates, one Algerian security guard and 29 gunmen were confirmed killed in that attack. - Sapa-dpa