Mexico's president condemned the killings and said there would not be impunity. She said she was not aware of any threats against the mayor.

Mexican President Claudia Sheinbaum said Saturday that U.S. President Donald Trump proposed sending American troops into Mexico to help her administration fight drug trafficking but she rejected it.

As the US officially designates six Mexican cartels as terrorist groups, Mexico's president warns the United States against any violation of its territory.

Earlier this month, Sheinbaum shared a letter addressed to Google with reporters, arguing that the U.S. had no authority to unilaterally rename the Gulf.

U.S. tariffs on Mexico and Canada will be put on hold for 30 days.

Claudia Sheinbaum is a 62-year old environmental scientist who left academia on a political trajectory that took her from a local mayor, to running Mexico City, to winning the presidency with nearly 60 percent of the vote.

The 62-year-old scientist turned politician campaigned on a promise to protect an expanded social safety net and fight for the poor like her predecessor, but she faces many pressing problems.

In Mexico, a group of masked people in the state of Chiapas stopped presidential candidate Claudia Sheinbaum at a checkpoint. The incident comes amid a spate of political assassinations.