Four people including senior four candidates were seriously injured when two motor riders collided between Malakia and Malith residential area.
Rumbek traffic police officer Daniel Awet Malek confirmed the accident, and blamed the Motor riders for over speeding.
The traffic offer advises motorists to reduce their speed because it is fatal.
Surgical ward doctor Bakhita Atong Aguek, at the state hospital says four people were rushed in with serious wounds caused by motorbikes accident.
She adds the patients were brought in critical condition but their condition is improving after receiving treatment.
During festive season, there is an increased rate of accidents people should take care of themselves while on the road.