Witnesses say at least 10 people have been killed in an apparent terrorist attack on an upscale shopping mall in the Kenyan capital.
The gunmen opened fire and tossed hand grenades Saturday at the Westgate Mall in Nairobi. Several people were wounded, including children. There have been reports of hostages being held in the complex.
The attack sent terrified shoppers fleeing. Many left the building, where smoke was seen pouring out of one entrance.
Officials at first said the incident may have been a failed robbery attempt. But media are now reporting it appears to have been a terrorist attack. The mall is popular with wealthy Kenyans and expatriates.
There has been no immediate claim of responsibility.
The Somali extremist group al-Shabaab has threatened to carry out an attack in Nairobi, in retaliation for Kenya sending troops into Somalia to fight Islamist militants.