The Brazil Game Show, which is one of the world's largest video game conventions, is launching an investigation into an incident where a cosplayer was reportedly attacked at the event.

The event's organisers released a statement confirming they have suspended the third-party security firm that was allegedly responsible for the attack on cosplayer Michael Giordano Martins Pereira.

The statement is posted in Portuguese, and GameSpot Brasil told us that Brazil Game Show is confirmed to be investigating the situation. BGS organisers are now apparently examining the situation to determine a fair decision.

Pereira, who was dressed as the Joker from the Batman universe, claims to have been tortured by security at the show. Online reports state that Pereira got into a scuffle with security upon trying to re-enter the venue. Graphic images circulating on social media document the alleged abuse.

Pereira is working with lawyer Daniela Conti in this matter.

The Brazil Game Show ran October 10-13 in Sao Paulo. The show is among the biggest in the world, with attendance usually exceeding more than 300,000 people.

The 2019 Brazil Game Show welcomed a number of big names from the international game development scene, including Dark Souls creator Hidetaka Miyazaki, Grand Theft Auto V actor Steven Ogg, and Doom designer John Romero. PlayStation, Xbox, Nintendo, and Warner Bros. are among the companies that exhibited at the event.