Other major Al-Shabab attacks

Hotel: Last week, Al-Shabab claimed responsibility for a deadly siege on a Mogadishu hotel in which at least 24 people, including six attackers, were killed.

Shopping mall: In 2013, Al-Shabab mounted an attack on a Nairobi shopping mall that turned into a four-day siege and killed 67 people.

Border attacks: Kenya’s northern and eastern regions, which are near the Somali border, have suffered many attacks blamed on the Al-Qaida-linked Somali group, which has vowed retribution on Kenya for sending troops into Somalia to fight the militants. Last month, Al-Shabab claimed responsibility for attacks in the county of Mandera on the Somali border in which 12 people died. Four of them died in an attack on the convoy of Mandera County Governor Ali Roba.

Uptick in attacks: Police statistics show that 312 people have been killed in Al-Shabab attacks in Kenya from 2012 to 2014. Thirty-eight people were killed and 149 wounded in Garissa in the same period.