Violence marred first few hours of polling in West Bengal, where the fourth phase of elections is underway in eight Lok Sabha constituencies.

Clashes broke out between the supporters of rival parties in Nanoor, Rampurhat, Nalhati and Siuri areas of Birbhum seat, injuring several people on the two sides. In Dubrajpur area of the constituency, voters allegedly engaged in a scuffle with the central forces when they were barred from entering the booths with mobile phones.