Gunman have stormed a five-storey shopping centre in Nairobi, the Kenyan capital, in an ongoing siege in which at least 22 people have already died and 30 have been injured.
Kenyan special forces have entered the complex and it is believed they have cornered some or all of the unknown number of attackers, who may be holding hostages.
A number of people trapped inside were able to hide and communicate with the outside world with their mobile phones. Some were helping direct the security forces towards their targets.
The government is working on the assumption that this is a terrorist attack, with the Somali-based al-Shabbab group the most likely suspect.
Three eyewitnesses said the gunmen asked Muslims to identify themselves, and were asked to name the prophet’s mother to prove they were Muslims. Once they had satisified that demand, they were allowed to leave.