Authorities in central Mexico discovered the hacked-up remains of a man distributed among several cardboard boxes, media outlets said.
Area residents called police to report the sudden appearance of the boxes on a vacant lot in Ecatepec, a town in Mexico state.
The lot is next to a busy highway linking Mexico City and Pachuca.
A man's body "in a state of decomposition" was found Thursday alongside the Mexico City-Pachuca expressway, a source in the Mexico state Attorney General's Office told Efe.
Medical examiners have yet to determine the victim's age, let alone his identity, the source said.
Last weekend, the mutilated body of a woman was found stuffed in a suitcase abandoned at a Mexico City Metro station.
The suitcase and an accompanying sign were left in a passageway leading to a stairway at the San Antonio Metro station in western Mexico City.
"As I understand it, the person (who abandoned the suitcase) was spotted around the El Rosario station near the border with Mexico state," capital Public Safety Secretary Jesus Rodriguez Almeida said Monday.
Mexico state surrounds the Federal District and forms part of the Mexico City metropolitan area.
The Mexico City district attorney's office on Thursday released a composite sketch of a suspect in the case.
The woman found in the suitcase was about 30 and had been beheaded and mutilated, according to media accounts that said the sign left with the body bore a message from La Familia Michoacana, a criminal organization based in the western state of Michoacan. EFE