Detectives were investigating a shooting Saturday afternoon in Miami Beach.
Police officers were called to Collins Avenue and Sixth Street, according to the Miami Beach Police Department. Four men were taken into custody.
A witness watching from a second story window said he heard a group of men arguing, then gunshots.
Officers were searching for a victim they believed fled the scene of the shooting.
"There was blood located nearby, which leads us to believe that there maybe a potential victim or subject, but that person left the scene," said Ernesto Rodriguez, of the Miami Beach Police Department.
Some of the stores in the area, a few blocks away from Ocean Drive, include Zara, Tommy Hilfiger, Club Monaco and True Religion. Memorial Day weekend is busy in South Beach.
While the U.S. military participated in the new Air & Sea Show on the beach, authorities were on high alert for tourists who show up to party. Urban Beach Week's hip-hop and gangster rap events were also ongoing this week.
To deal with the crowds and traffic jams Saturday, authorities limited access to Collins Avenue to northbound traffic. After the shooting, police officers blocked access to Collins Avenue between Fifth and Seventh streets.
Groups of people waited hours to get to their vehicles parked within the crime scene.