The Westgate Mall is attacked in Nairobi, Kenya.
In a daring siege, militants of the extremist group al-Shabaab took over the Mall. 68 shoppers were killed during the attack that lasted a few hours, and before the Kenyan security forces rescued the hostages, 4 terrorists were also killed. Al-Shabaab declared that it had undertaken the attack as retaliation for the presence of Kenyan armed forces in Somalia.