The announcement adds a new twist to an investigation that has come under fire from international human rights groups and independent investigators.
The attorney general's office has charged municipal police officers in connection with the mass abduction in the southern city of Iguala on September 26-27, 2014.
But the governmental rights commission said that an eyewitness saw two federal agents near Iguala's courthouse, where municipal officers had stopped a bus carrying 15 to 20 students.
The bus was one of five that around 100 students had seized that night in order to use them for a future protest.
Jose Larrieta Carrasco, a commission official investigating the Iguala case, said authorities should look into a "new route in the disappearance" of the students.
The attorney general's office declared last year that Iguala and Cocula police officers abducted the students and delivered them to a drug cartel.
The gang then killed the students, incinerated their bodies at a garbage dump in Cocula, and dropped the remains in a nearby river.
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
