SAS on hand as Kenyans launch final offensive in terror shopping centre Mr Hammond said: "We have been in touch with the Kenyan authorities throughout. As the Prime Minister made clear, we have said we will provide them with any assistance which they request. We haven't yet been asked to provide any assistance beyond broad background advice. We'll be monitoring the situation very carefully as it develops overnight. British holidaymakers heading to Kenya were promised the country was "peaceful." The Kenyan government insisted it was safe to visit the country and that President Kenyatta had increased security. Virgin Holidays told The Daily Telegraph it was still running its safari and beach packages and that no customer had so far rung up to cancel. Thomson Holidays is also continuing to operate as "normal." But industry figures said it was inevitable British holidaymakers would worry about flying to the country in the wake of the atrocity. One said: "The safari season is in full swing at the minute, with 20,000 to 30,000 Brits out there. It's inevitable others due to fly out will think twice. Mohammed Hersi, head of the luxury Heritage Hotels Kenya chain said "It is still too early to say whether it will affect us but it is not good when it comes to tourism." The Foreign Office stuck by advice issued on Saturday, advising against all but essential travel to low income areas of the Kenyan capital and to within 60km of the Kenya-Somali border. This means that anyone due to travel to Kenya will not be able to receive compensation if they decide to cancel their trip. The tourist trade accounts for 10 per cent of Kenya's economic output, or GDP, and the country's tourism sector employs 150,000 people. The country suffered a 30 per cent fall in visitor numbers when 1,200 were killed in tribal conflicts following Presidential elections in 2008. An acid attack on two British tourists took place in Zanzibar, an island off the coast of neighbouring Tanzania, last month.