Note—Piedras Negras in 2010 had about 150,000 people within the city limits.
Piedras Negras, Coahuila, Mexico under Martial Law after multiple gun battles
Eagle Pass Business Journal
Jose G. Landa
The City of Piedras Negras, Coahuila, Mexico was placed under martial law yesterday, Wednesday, September 26, 2012, by local and federal authorities after multiple, intense gun battles between federal and state special forces and criminal elements throughout the day continuing until the late-evening…
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