Mexico City’s crumbling metro system casts shadow on mayor’s 2024 ambitions

String of mishaps of cantankerous subway system could throw a wrench in Claudia Sheinbaum's presidential aspirations

Smoke filled the subway station, the tunnel turning gray in the choking haze as hundreds of passengers were evacuated from the train. More than a dozen were treated for smoke inhalation, the authorities said, after a short circuit apparently caused the wafting fumes.

The incident on Monday, which soon billowed across Mexican social media, is just the latest in a string of mishaps on Mexico City's cantankerous subway system which have left more than two dozen people dead - and potentially thrown a major wrench into the presidential aspirations of the capital's mayor, Claudia Sheinbaum.