Mexico: location of the four new mass graves remains undisclosed The location of the four new mass graves in a narcotrafficants’ controlled territory in the outskirts of Iguala, Mexico is still undisclosed and unaccessible. Mexican Attorney General Murillo Karam announced on Thursday that four new suspects took investigators to the site of the four pits, 200 kilometers (125 miles) south of Mexico City, but the number of bodies remains unknown. The 43 students have been missing since September 26. Images.