Thirteen suspected offenders were killed by police in Mexico's industrial heartland, where eight people also died in the attack on a bar by gunmen, judicial sources said on Friday.
"
Ten men and three women died
" Thursday during a clash with police in the state of San Luis Potosi, the regional prosecutor's office said.
The alleged offenders "
would be involved in the latest violent events in the area
", added the prosecution.
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On June 10, the bodies of seven unidentified men were abandoned in a locality in the same state, the prosecution had announced.
In the neighboring state of Guanajuato, eight people were shot dead and five others injured in an attack on a speakeasy on Friday, local authorities reported.
On Wednesday, a journalist-entrepreneur and two other people died in the armed robbery of a bar in the municipality of San Luis de la Paz.
San Luis Potosi (General Motors and BMW plants) and Guanajuato are two industrial states.
Guanajuato has become one of the most violent states among the 32 that make up Mexico, due to the rivalry between two cartels: Santa Rosa de Lima and Jalisco New Generation.
In the first half, Guanajuato was the most violent state in the country, with 1,259 homicides.
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