Thirty three Trinamool Congress supporters were injured, including five seriously, when the vehicle in which they were travelling overturned in North 24 Parganas district, police said.
 
The Trinamool supporters were on their way to attend the party's rally in Kolkata, when the driver of the mini-truck carrying them lost his control leading to the accident.
 
The seriously injured have been admitted to a local hospital, police said.