It follows the ousting of former Peruvian president Pedro Castillo last month, which saw widespread protesting and blockades disrupt travel to and around the country.
Hundreds of tourists found themselves stranded at Machu Picchu and on the Inca Trail owing to a suspension of rail service from Cusco and flights to the city.
Many of the country’s regional airports have now reopened, but a fresh wave of protests in capital Lima and across the south of the country got under under way on Wednesday (4 January), prompting the FCDO to renew its guidance to travellers – warning them that travel to some parts of the country "may not be possible".