A Mexican law enforcement official says dozens of bodies have been dumped on a highway near the northern city of Monterrey.
Many of the bodies apparently are mutilated.
The discovery early Sunday led authorities to close a highway from Monterrey to the border city of Reynosa, snarling traffic.
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The discovery seems to echo several other recent incidents in which drug gangs left large numbers of bodies in public places as a warning to their rivals.
The official asked that his name not be used because he was not authorized to release the information. The details match reports in Mexican news media.