Brazil is preparing for the Olympic games. (Flickr Creative Commons)

Brazilian police arrested three people Monday in connection to the nightclub fire that killed 233 people over the weekend, according to USA Today.

Police said they are searching for a fourth suspect.

According to Inspector Ranolfo Vieira Junior, the arrests are for investigative purposes and have five-day limits. Police discovered that the fire was caused by a band's pyrotechnics display.

The co-owner of the club was arrested along with two of the band members. Another band member died in the fire.

Read more of Neon Tommy's coverage of the Brazilian fire here.

Reach Executive Producer Michael Juliani here.