Authorities were investigating Friday morning after witnesses say several gunshots were fired after the rap group "A$AP MOB" was performing at The Fillmore in Miami Beach.
The shots were fired after the Thursday night concert, but Miami Beach Police were still at the scene hours later.
Witnesses starting Tweeting about the incident. Read some of the Tweets here.
Police twist-tied a man's wrists together and led him into a van. But police didn't not confirm it.
A witness told NBC 6 that he was going to his car after the show when he heard about six gun shots. Shortly after, he saw police arriving.
"At first, we didn't realize it was gunshots. I thought it might've been fireworks, but then I saw a whole bunch of police came, made me realize they were gunshots," said Roberto Sanchez.