KATHMANDU: Six persons were injured in a car-motorbike collision at Hattigauda in Kathmandu on Saturday. Police said that the car driver and the bike rider among others were injured in the incident. Among the injured, Sabina Shrestha (25) of Budhanilkantha is said to be in critical condition. The car (Ba 1 Ja 7575) en route to Budhanilkantha from Chakrapath collided head-on with the motorbike (Ba 68 pa 1048) at around 4 am this morning, police said. The injured are being treated at the Maharajgunj-based Tribhuvan University Teaching Hospital.