“We ask authorities to reach the ultimate consequences and find those responsible,” she added.
Dozens of local officials have been targeted in organised crime-related violence that has plagued Mexico in recent years.
Local media reported last month that Alejandro Arcos, a mayor in southern Guerrero state, was decapitated less than a week after taking office and his head placed on top of a pickup truck.
More than 450,000 people have been murdered and thousands have gone missing since the Mexican government deployed the army to combat drug trafficking in 2006, according to official figures.
AFP
