One person has been killed and at least four were wounded at this year’s ZombiCon in Fort Myers, Florida. Police are searching for the suspect in the city’s downtown area. Hit the jump to see what happened.

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The shooting took place a little after 11:30 local time on Saturday, just as the event was finishing, according to NBC2.

As the first sounds of gunfire reached festivalgoers, someone said they heard “firecrackers,” Naples News reports. Emergency medical personnel arrived at the scene almost immediately to attend to a man lying motionless on the ground.

Police would not confirm if a shooting had taken place at first, but the area was quickly sealed off.

The organizers of the festival posted a message on its Facebook page, saying they are “deeply saddened by the news of what happened.”

The annual ZombiCon event started in 2007. ‘The dead’ from across the United States flock to the city every year for the convention – possibly the largest in the world, which features arts, music and a massive zombie march in the downtown area, as people celebrate the undead and everything related to the genre.

Watch the aftermath of the shooting.