At least 29 individuals were eliminated in main Peru when a coach bus went off the roadway and plunged 200 meters, radio broadcaster RPP mentioned a law enforcement officer as stating Tuesday.
Another 20 individuals were hurt.
The bus was taking a trip from Huanuco in the Andes to the capital, Lima when the mishap took place near the town of Chosica.
The reason for the mishap stays uncertain. Investigators are checking out whether the chauffeur might have dropped off to sleep.
Serious bus mishaps are not unusual in Peru, where roadway conditions can be challenging and buses are not constantly in excellent condition.