The tourist airport of Cusco is among three forced to close as political protests spread across Peru.
A series of travel alerts were issued by the Foreign Office as widespread demonstrations were reported in the capital of Lima and increased protests in other parts of the country.
A 30-day state of emergency was declared in three new regions in the South American country including Amazonas, allowing military forces to assist local police and authorities in maintaining law and order.
The Foreign, Commonwealth & Development Office warned that the protests are “unpredictable and can escalate quickly and include violence”.
The updated travel advice added: “You should take particular care to avoid all areas of protests. If possible, you should remain in a safe place. You should also monitor local media, including social media channels.
“Travellers arriving in Peru should be aware that travel to some parts of the country may not be possible.
“Protests may cause travel disruption, including with road blockades, suspension of train services – including trains to/from Machu Picchu – and airport closures in different parts of the country.
“The airports of Juliaca in Puno, Arequipa and Cusco have temporarily suspended their operations.”
The protests in Lima are focused in the historic centre, “but with the potential to spread to other areas”.
Train services in the south of the country have been temporarily suspended “as a precautionary measure”.
The FCDO added: “The route Ollantaytambo-Machu Picchu-Ollantaytambo is subject to frequent change and may open and close with very little notice.
“It is possible that there could be disruption to travel in the Sacred Valley and any return to Cusco, so we advise visitors to check with travel providers in advance.”