article_snippet: The attack was the work of the Mulathameen Brigade, which translates as the "Signatories in Blood Brigade.
article_snippet: In January, a suicide bombing and gun attack on a hotel in the capital, Tripoli, killed 10 people, including an American. gun attack was swiftly claimed by Wilayat al-Tarabulus, ISIS name for the province.
article_snippet: Before the advent of ISIS, an Islamist group called Ansar al Shariah was blamed by the United States for carrying out the September 11,  2012, attack on the U.S. Consulate in Benghazi in which Ambassador Christopher Stevens was killed.
article_snippet: Recent attacks include a shooting earlier this month at a bar popular with expatriates in the capital, Bamako, which killed five people, including French and Belgian citizens, authorities said.
article_snippet: A North African jihadist group, al-Murabitun, claimed responsibility for the attack, according to Mauritanian news agency Al Akhbar.
article_snippet: Al-Shabaab started with a goal of waging a war against the Somali government in an effort to implement a stricter form of Islamic law, or Sharia.
article_snippet: Al-Shabaab has since shifted focus to terrorist attacks in Somalia and beyond, notably neighboring Kenya.
article_snippet: Al-Shabaab most high-profile attack came in Somalia in 2013, when gunmen struck at Nairobi's upscale Westgate mall, pulling out weapons and gunning down shoppers.
article_snippet: Just last week, Al-Shabaab target was government offices in the city of Baidoa.
article_snippet: Al-Shabaab has also recently called for attacks on shopping malls in the United States, Canada and Britain.
article_snippet: The Pentagon said Just last week that a key Al-Shabaab operative connected to the Westgate mall attack, named as Adan Garar, was killed recently by a U.S. drone strike.
article_snippet: In September, Al-Shabaab leader Ahmed Abdi Godane was also killed in a U.S. airstrike near Barawe city.
article_snippet: Interior Ministry spokesman Mohamed Ali Aroui told national radio that the assailants were the Islamists, but authorities haven't been more specific than that.
article_snippet: ISIS claimed responsibility for the attack in an audio message posted online Thursday.