SINGAPORE, May 9 — A teenage cosplayer was arrested after getting into a scuffle with convicted child sex offender Amos Yee at an anime convention in Suntec Singapore yesterday.

The police said they were alerted to the incident at the Suntec Singapore Convention and Exhibition Centre at about 2.15pm, according to the Straits Times.

Officers established that an 18‑year‑old boy had assaulted a 27‑year‑old man who suffered minor injuries, and they later arrested the teenager for causing public nuisance.

Yee, who was jailed in the United States in 2021 for grooming and sexually exploiting a minor before returning to Singapore, posted on X that he had “just been attacked in the anime convention” and shared a photo showing a bloodied lip.

Videos circulating online showed a cosplayer dressed as Yuji Itadori from the anime Jujutsu Kaisen punching, kicking and stomping on a man outside the Doujin Market 2026 halls.

The incident occurred at about 12.30pm, according to eventgoers, in a report by Mothership.

The footage showed the attacker briefly walking away before returning to leap onto the man and elbow him while he was curled on the ground.

Another attendee then pulled the attacker aside as the man on the ground held his head and later walked away.

The alleged attacker later claimed on Instagram that he saw Yee “try to molest someone” and confronted him.

He said he attempted to remove Yee from the area but alleged that Yee attacked him first, prompting him to retaliate in what he described as self‑defence.

Doujin Market, also known as Doujima, is being held at halls 403 to 405 from today to tomorrow.

Yee had posted on X a day earlier that he planned to attend the convention.

The organisers said on Instagram yesterday that they had cancelled the ticket of “a known problematic influencer” and were working to bar him from all future events.

They said they took “the safety of everyone at our convention very seriously”.

Police investigations are ongoing.