'I was prepared to die': survivors recount chaos of Nairobi attack

President says planners of assault claimed by al-Shabaab will be relentlessly pursued

• Briton and American among those killed in attack

Kenya's president has vowed to relentlessly pursue anyone involved in the Nairobi hotel complex attack, as new details of the 16-hour siege emerged.

Twenty-one people have been confirmed dead, including 11 Kenyans, a Briton and an American, as well as five attackers. The Kenya Red Cross said on Thursday that all 94 cases of people reported to be missing had been "closed positively".