Gunmen dressed as traditional mariachi musicians have killed at least three people and wounded at least seven in Mexico City.
The armed men opened fire at a road crossing on the edge of the Plaza Garibaldi, a major tourist attraction packed with mariachi bars, police said.
The gunmen then fled from the scene on motorbikes.
Plaza Garibaldi borders the notorious Tepito district, home to the violent La Union drugs gang.
“You come completely relaxed and to have a good time and then suddenly there are gunshots. You don’t know if you’re going to get back home,” one tourist in the area told Reuters news agency.
“Now, you’re not going to trust mariachis because the gunmen were dressed as mariachis.”
There was a heavy police presence around the Plaza Garibaldi in the wake of the shooting.
Tepito has suffered a wave of violence over the last month after the gang’s presumed leader, Roberto Moyado Esparza – or El Betito – was arrested.
The number of killings in the city, the Mexican capital, has surged since 2014.
More than 200,000 people have been killed or have disappeared since December 2006, when Mexico’s government declared war on organised crime.
Mexico experienced its most violent year in 2017 with more than 25,000 murders, official figures suggest. It is the highest annual tally since modern records began. Organised crime accounted for nearly three-quarters of those murders.