Gangtok: Eleven passengers were injured, some grievously,when a vehicle traveling towards Sikkim met with an accident at Rambhi on West Bengal side.As per information received, the accident occurred on April 23 in the afternoon.The vehicle, a Tata Sumo, was on its way into Sikkim from Siliguri carrying tourists when the driver lost control and the vehicle slipped into roadside drain and crashed into the mountain side.The driver is absconding.