A large number of women in Sandeshkhali had accused Trinamool Congress strongman Shajahan Sheikh and his supporters of "land-grab and sexually assaulting" them under coercion.
A senior police officer said the incident occurred within the jurisdiction of the Inderpuri police station and the escort vehicle of the West Bengal governor was hit by a private car.
The vessel was on its way back from Gangasagar to Kakdwip and reportedly lost its way due to the dense fog. The passengers and the crew are reported to be safe.