A young couple found dead in their hostel room during a holiday at a World Heritage site in Argentina lay in their room for at least two days before they were discovered.
The pair - named as Sofia Macarena Robledo, 27, and Jose Eduardo Rojas, 28 - were discovered unresponsive by the hostel owners and their son.
A post mortem examination found they had died from carbon monoxide poisoning and had been dead for at least 48 hours, reported local media in resort town Humahuaca.
