Gunmen forced six men to kneel in front of a business and shot them dead in this border city, part of a wave of violence that claimed at least 13 lives across Mexico over 24 hours, police has said.
A note reading "for all rats, this will continue" was found among the bodies at an events hall in Ciudad Juarez, said city police spokesman Alejandro Pariente yesterday.
Pariente said police found more than 100 bullet shells at the scene and were investigating whether the Thursday night attack was linked to drugs gangs. No arrests have been made.
In the western state of Jalisco, three police officers were killed yesterday in an undercover operation to nab a murder and robbery suspect.
Two of the officers were dressed as gardeners and a third was inside a car when they come under attack from a group of gunmen, said Lino Gonzalez, a spokesman for the state Public Safety office.
Two of the gunmen were chased down and arrested. Gonzalez said investigators had not determined whether the assailants knew the officers were undercover police.
Four other people were killed in a gunbattle between gangs in the southwestern state of Guerrero, according to the state Public Safety Department.
Drug violence has been spiraling across Mexico and especially in Ciudad Juarez, a city across the border from El Paso, Texas, where more than 1,000 people have been killed this year.