KATHMANDU: At least six persons were injured after a bus they were travelling in met with an accident at Kolbung in Ilam district on Wednesday. The bus (Na 5 Kha 6321) was heading towards Rautahat from Kolbung when the accident took place. Following the incident, all the injured were rushed to a hospital in Jhapa for treatment, police said. Among the injured, Raju Sahu (55) of Rautahat-8 is said to be in critical condition. Police said that they have impounded the vehicle and arrested its driver for investigation.