A train driver has been killed and 40 more people injured on Tuesday after two trains collided head-on on the railway leading to the Inca citadel of Machu Picchu, the Andean nation's top tourist site that draws well over 1 million visitors each year.
Police are investigating the collision between trains operated by Inca Rail S.A. and PeruRail S.A., which mainly transport tourists to the iconic site.
A health official said about 20 people were in relatively serious condition.
A police officer added that foreign tourists were among the injured.
Images posted on social media shortly after the crash showed the badly damaged locomotives facing each other on the track, broken glass strewn around and injured people being treated on the sides of the tracks.

Trump says US military strike killed leader of Venezuela's Tren de Aragua gang
US and Iran signal a peace deal is close
Qatar rejects media report on energy production decisions
Trump says Iran war deal close as Strait of Hormuz tensions linger
Victims' families mark Air India crash anniversary with prayers and tributes
