Fifty-nine people were injured on Friday from a pileup involving five buses on an motorway in South Korea, according to Yonhap news agency.
The rear-end crashes occurred at about 7:23 a.m. local time (2223 GMT Thursday) near an motorway interchange in Suwon, some 30 km south of the capital Seoul.
No death was reported, but a driver of the hindmost bus was seriously wounded and taken to the hospital.
A total of 58 passengers were treated for minor injuries to their necks and backs.
There were 91 people on board the buses, including the drivers.
The buses were believed to have failed to slow down in the congested section.