Nairobi Westgate attack: UK emergency talks over Kenya
23 September 2013 Last updated at 14:54 BST
The British Prime Minister David Cameron is leading a meeting of the government's emergency committee, Cobra, on Monday afternoon, in response to the attack on a shopping centre in the Kenyan capital Nairobi.
It will investigate reports that Britons may have been part of the al-Shabab group which says it carried out the attack.
The UK government says it will also establish more details about the British nationals who have been confirmed to be among the victims.
Frank Gardner reports.