SEOUL, Oct. 14 -- South Korean running influencer and artificial intelligence semiconductor researcher Yoo Ji-won has died after collapsing during the 2026 Seoul Race, according to Resonate Voices.

She was 25 years old and was a graduate student at the Korea Advanced Institute of Science and Technology (KAIST).

Yoo lost consciousness at the 20.6-kilometre mark of the 21-kilometre half-marathon course, roughly 500 metres from the finish line.

"At around 8.49am on October 11, an emergency situation occurred when a participant in the half course collapsed at the 20.6km mark," the organising committee stated.

"After immediate first aid on site, the participant was transported to a medical facility by 119 ambulance for treatment, but unfor...