At least 68 people have been killed during a shooting rampage at a shopping mall in an upscale district of Nairobi which is popular with tourists and British expatriates.
The attack, which is ongoing, is thought to have been orchestrated by extremists from the Somali al-Shabab movement in protest at Kenyan activity in Somalia.
A further 150 people are believed to have been injured during the attack, which has continued into Monday morning.
Some 15 militants are believed to still be inside the Westgate shopping centre after launching the assault on Saturday afternoon.
Gunfire and explosions were reported earlier today, with the Kenyan military attempting to bring the situation to a conclusion.
The British Foreign & Commonwealth Office has advised against “all but essential travel” to parts of Kenya following the attack.
The FCO stated: “The incident is still ongoing, with reports of a number of casualties and hostages. Armed Kenyan security forces are on the scene.
“We advise British nationals to avoid the area and exercise extreme caution.”
At least three Britons are among the dead, along with causalities from South Africa, India, China, the Netherlands, Canada, Australia and Kenya.
The incident is the latest blow to Kenya, which relies heavily on tourism.
Earlier this week, it was reported that Kenya is expecting a ten per cent jump in visitor numbers in the 2013-14, driven by a rising flow of tourists from emerging markets.
In the latest development, the International Criminal Court announced this morning it was adjourning the trial of Kenya’s deputy president William Ruto on charges relating to violence following elections in 2007.
He will be allowed to return to Kenya for one week to help address the crisis.