Amos Yee beaten up by cosplayer at S'pore anime convention at Suntec City

UPDATE on May 9 at 6:41pm: This article has been updated with new information from the police.

Singaporean convicted child sex offender Amos Yee, 27, was filmed being beaten up by an attendee at a Singapore anime convention, Doujin Market 2026, on May 9.

Videos circulating on social media showed Yee crouching down on the ground outside the convention hall as a fellow attendee cosplaying as Yuji Itadori, a character from the anime "Jujutsu Kaisen", rained punches and kicks on him.

The incident happened at about 12:30pm, according to eventgoers.

Banned from event

The event, Doujin Market 2026, is held over a two-day period from May 9 to 10 at Suntec City Convention Centre.

Yee posted on X on May 8 that he planned to attend the convention.

Following reports from the community and concerns raised by attendees, its organisers said that they had "cancelled his tickets and are working to ban him from all our shows".

Nonetheless, he turned up and was spotted by other attendees at the event.

fml amos yee spotted at doujima @doujimasg pic.twitter.com/dsOcNLCXnG

— ⋆ 𝓈𝒽𝒶𝓇 ⋆ ☁️✨ (@sharinnaho) May 9, 2026

He also posted on X, describing the convention's atmosphere via posts and photos.

Protect your kids pic.twitter.com/LKoOzc50E5

— Amos Yee (@amosyeeishere) May 9, 2026

Attacker claimed Yee tried to molest another attendee

Following the attack, the alleged attacker posted about the incident on his Instagram story, claiming he had witnessed Yee "[try] to molest someone".

He then tried to stop Yee and make him leave the event, he claimed, but Yee had allegedly attacked him, leading him to strike back out of self-defence.

Yee posted about the brawl on X with a photo of a bloodied upper lip.

Just been attacked in the anime convention. Look at the bloodied up lip pic.twitter.com/3skOxoACOf

— Amos Yee (@amosyeeishere) May 9, 2026

18-year-old arrested

In response to Mothership's queries, the police said an 18-year-old man has been arrested for causing public nuisance through the assault.

SPF said that it received a call for assistance at about 2:15pm on May 9.

"Upon arrival, officers established that a 27-year-old male subject was assaulted by an 18-year-old male subject," SPF said.

Yee sustained minor injuries.

Police investigations are ongoing.