Candidate for mayor of Mexican city of Celaya killed on first day of campaign

Bertha Gisela Gaytan is one of at least 22 mayoral candidates murdered in Mexico since September 2023

A candidate running to be mayor in one of Mexico's most violent cities has been killed on the first day of her campaign, adding to the death toll in what experts say could be the country's bloodiest elections in history.

Bertha Gisela Gaytan was shot in a town just outside of the city of Celaya, where she was running for Morena, Mexico's governing party. A video on social media shows a group of activists and supporters of Morena walking through the streets before shots ring out.