An investigation is casting a shadow over the athletics scene in China after a seemingly rigged half-marathon in Beijing sparked a debate over the race's results.

Footage widely shared on social media showed Chinese runner He Jie crossed the finish line.

Speculations are abound over whether the other runners intentionally slowed down to facilitate his victory.

The 2023 Asian Games Marathon gold medalist won the race by just one second, beating competitors from Kenya and Ethiopia.

CNA's Jeremy Koh breaks down what this latest incident means for China's sporting scene.