South Korean police have opened an investigation into local users of Polymarket, according to multiple reports. The probe targets allegations that Polymarket activity may fall under illegal gambling rules, with scrutiny described in connection with broader concerns around election-related betting and the legal status of prediction-market products. Bloomberg reports that the investigation is part of increased regulatory attention as Polymarket continues to expand its presence across Asia. Cointelegraph and The Block similarly describe the matter as what would be the country’s first illegal gambling probe involving Polymarket users. The Block adds detail on potential penalties, saying those investigated could face fines of up to 10 million Korean won (about $6,495). The reports do not indicate that a formal outcome has been reached, and they frame the action as an ongoing law-enforcement probe into whether specific user activity complies with South Korean regulations governing gambling and related activities.