Many dead in Nairobi shopping mall shooting
21 September 2013 Last updated at 21:18 BST
A senior figure in the Somali militant group al-Shabab has told the BBC it carried out a deadly attack on a shopping centre in neighbouring Kenya.
Gunmen entered the Westgate centre at about 12:00 local time (09:00 GMT), throwing grenades and firing automatic weapons.
Al-Shabab, which has links to al-Qaeda, said the attack was in response to Kenya's presence in Somalia, where its troops have been fighting the militants since 2011.
Anne Soy reports from Nairobi.