A head-on collision between two trains on the line that services Peru’s Machu Picchu killed one person and injured at least 40 others, authorities said, updating an earlier toll.The deceased was the conductor of one of the two trains, according to the prosecutor’s office in Cusco, the city closest to the famous Inca citadel.Officials said they were working to identify the injured train passengers, many of them foreign visitors and most of them seriously hurt.For all the latest headlines follow our Google News channel online or via the app.Videos sent by passengers to the RPP television channel showed injured victims lying next to the tracks with two damaged locomotives standing idle nearby.A dozen ambulances and medical personnel were rushed to the site in a remote Andean area without direct road access.A UNESCO World Heritage Site since 1983, the ancient fortified complex receives some 4,500 visitors on average each day, many of them foreigners, according to the tourism ministry.Most