The wave of killings includes murders in Guanajuato and Sinaloa, as well as the assassination of a mayor and his secretary.

President Claudia Sheinbaum called for increased intelligence to curb the violent crime that gripped Mexico under her predecessor, who oversaw one of the deadliest periods in the country’s recent history.

Mayor Alejandro Arcos Catalan, who had just taken office the same day as Sheinbaum, was found murdered brutally Sunday.