A number of suspected Somali al-Shabab militants stormed the Westgate shopping centre in the Kenyan capital, Nairobi, on Saturday throwing grenades and firing automatic weapons.
Some witnesses said the militants told Muslims to leave and said non-Muslims would be targeted.
The attackers are still holding a number of hostages, and it is thought many civilians are hiding inside the building, too. Here is some of the best footage from the scene.
How events unfolded
'I heard gunfire and screaming'
BBC reporter ordered to take cover
Footage emerges from inside Westgate
Eyewitness says he saw gunman escape
President Kenyatta makes TV address
Survivor emerges on Sunday morning
Interior minister tells of security operation
Heavy military presence in surrounding area
Kenya's Interior Cabinet Secretary: We are in control