The personal secretary and an adviser to the mayor of Mexico City were killed by gunmen on a motorcycle in a central neighborhood of the capital on Tuesday, Mexican authorities said.
Mayor Clara Brugada holds the second most powerful political position in the country after President Claudia Sheinbaum and they are allies in the Morena party.
Brugada said in a statement that her secretary Ximena Guzmán and councilor José Muñoz were killed in the Moderna neighborhood. Brugada called the killings a "direct attack."
Authorities are investigating the motive and are reviewing surveillance camera footage to identify the attackers, Brugada said. Photos from the scene showed police officers inspecting a car that appeared to have multiple bullet holes in the windshield.
"There will be no impunity. Those responsible will be arrested and must face justice," Brugada said in her statement.
Sheinbaum said during her morning press conference that there would be no impunity. Sheinbaum served as mayor of Mexico City before winning the presidency last year.
In 2020, gunmen from the Jalisco New Generation Cartel attempted to assassinate then-police chief Sheinbaum in a spectacular ambush on a central boulevard. He was wounded and three people were killed.