A suicide bomb attack rocked a luxury hotel in the Somali capital of Mogadishu on Sunday, killing at least 15 people. The militant group Al-Shabaab has claimed responsibility.
Below is a list of massive attacks allegedly carried out by Al-Shabaab over the past five years.
-- On June 26, 2015, Al-Shabaab fighters stormed an African Union (AU) peacekeepers' base in the southern Somalian town of Leego, killing more than 50 Burundian soldiers.
-- On April 2, 2015, over 147 students were killed in a raid by masked Al-Shabaab militants at Garissa University College in the eastern Kenyan city of Garissa, making the event the worst terror attack on Kenyan soil in nearly two decades.
-- On Nov. 22, 2014, Al-Shabaab gunmen attacked a bus heading to the Mandera region in northern Kenya, shooting dead 28 passengers.
-- On Oct. 19, 2013, at least 16 people were killed and several injured in an attack at a restaurant near a military base in the central Somali city of Beledweyne. Al-Shabaab later claimed responbsibility for the attack, saying they were targeting AU peacekeeping troops.
-- On Sept. 21, 2013, masked Al-Shabaab gunmen launched a terror attack at Westgate Mall in the Kenyan capital of Nairobi, killing at least 67 unarmed civilians.
-- On April. 14, 2013, Somalia's supreme court building in the capital Mogadishu was hit by a suicide attack and at least 20 people, including the nine attackers, were killed. Al-Shabaab confirmed that they launched the attack.
-- On Oct. 4, 2011, Al-Shabaab rebels carried out a suicide attack with a truck bomb at a checkpoint outside a compound housing government ministries at the city center of Mogadishu, killing more than 70 people.
