The festival will attract a strong police presence. City of Miami police said they have more than 200 uniformed officers on patrol, as well as undercover officers within the event. The increased security was part of the festival's agreement after city commissioners raised objections to the event's expansion into a second weekend. There have been multiple drug arrests in previous years and for many who live in the downtown area the festival is seen as a major nuisance.
Last year, a video of an Ultra partygoer dancing, clearly inebriated, with a palm tree went viral on YouTube, symbolizing the revelry that's become associated with the festival and the music.
Festival organizers insisted the event will be safe.
"We got together and addressed everyone's concerns and spent a lot of money on extra security and police," said Russell Faibisch, one of the founders of Ultra.
AP Music Writer Chris Talbott in Nashville, Tenn., contributed to this report.
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