Police in Colombia say that eight foreign tourists have been kidnapped as they hiked near the Caribbean coast where a so-called Lost City (Ciudad Perdida) sits in the jungle built by an indigenous civilisation 500 B.C. One British tourist has managed to escape, the remaining seven tourists are from Israel, the UK, Germany and Spain. Thousands of troops have been mobilised to search for them in the high mountains of the Sierra Nevada, 750 kilometres (465 miles) north of the capital, Bogotá. Most of Colombia's 3,000-odd kidnappings every year – that is one every four hours – are carried out by FARC (Latin America's biggest guerrilla group with 17,000 fighters) who use the ransom to fund their 39-year war on the state.