Mexican President Claudia Sheinbaum ruled out a new "war on drugs" as a response to the assassination of a regional mayor who was shot at a Day of the Dead celebration, a brazen killing that has sparked national outrage.

Mexican President Claudia Sheinbaum has ruled out changes to her administration's security policies after the assassination of a mayor in the violent state of Michoacan.

Mexican President Claudia Sheinbaum promised on Sunday there would be justice for the brazen murder of a local mayor, Carlos Manzo, an outspoken critic of organized crime who had called on the government to do more to protect him and others.

Mexican President Claudia Sheinbaum has vowed full justice for the killing of Uruapan Mayor Carlos Manzo, a vocal critic of organized crime who was gunned down during a Day of the Dead event in Michoacan.

The cold-blooded murder of a crusading Mexican mayor, who hunted drug traffickers from a helicopter, has put pressure on President Claudia Sheinbaum to step up her fight against the country's notorious cartels.

Mexican President Claudia Sheinbaum has announced a new security strategy for Michoacan, following the assassination of Uruapan Mayor Carlos Alberto Manzo.

President Sheinbaum stressed that violence should not be answered with more violence and said that actions must remain within the law.