The bus belonging to the Sanchez line was on a road linking the cities of Nazca and Puquio in the region of Ayacucho when the accident occurred, highway police chief Orfiles Bravo told RPP radio.
"It apparently went off the road and has fallen some 1,000 meters (3,000 feet)" he said.
"There are 16 dead and 49 injured," he added.
Earlier officials had given a toll of 12 dead and 20 injured.
Bravo said the death toll may still rise, as some of the injured are in serious condition.
The accident came a week after 37 people were killed and at least 70 injured in a multiple-vehicle collision in northern Peru.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
