Some alleged that police fired tear gas; however the chief of police Gen. Orlando Velasco has denied this.
A security guard who works nearby told the site that the location had hosted parties before, and that they simply lowered the lights and music whenever police cars were nearby.
"I feel sorry for the relatives... but also anger and indignation with the business people who organized the event," Peruvian President Martín Vizcarra said, pushing for the organizers to face prosecution.
All mass gatherings are banned in Peru amid the coronavirus pandemic.
At almost 600k recorded cases, the South American country currently has the sixth-highest caseload in the world
More than 27,000 Peruvians have died of the disease, a rate of 837 per million population — the third deadliest on the planet.