Police detained a Kazakh man Monday after he was extradited from Kazakhstan over his suspected involvement in a hit-and-run case. . .

Police detained a Kazakh man Monday after he was extradited from Kazakhstan over his suspected involvement in a hit-and-run case, resulting in the serious injury of an elementary school boy, in South Gyeongsang Province last month. 

The 20-year-old man is suspected of hitting the 7-year-old, first-grade boy on a road in the southeastern city of Changwon around 3:30 p.m. on Sept. 16 and fled the scene before returning home via Uzbekistan the next day. 

The boy, who sustained a cerebral hemorrhage, has remained unconscious since the hit-and-run incident.