They arrived in mariachi dresses, opened the fire and then fled on motorcycles.
Armed men dressed as mariachi killed five people and injured eight others at the famous Garibaldi square, one of the most important tourist spots in Mexico City, the police said the night of this Friday.
Plaza Garibaldi is located next to the neighborhood Tepito, where the violent drug trade cartel of La Unión works.
- Why 2017 is the most violent year in Mexico's recent history
Tepito suffered a wave of violence last month after the alleged leader of the criminal group, Roberto Moyado Esparza – "El Betito" – was arrested.
The number of murders in the Mexican capital has risen again since 2014.
More than 200.000 people They have died or disappeared since December 2006 when the Mexican government declared war on drug trafficking.
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Mexico experienced its most violent year in 2017, with more than 25.000 murdersaccording to official figures. It is the highest annual count since the current records started.
Organized crime was behind nearly three-quarters of those killings.
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