At least four persons have been killed and three others injured in a crude bomb blast in Jainpur village of Malda district of West Bengal.
The blast took place last night at around 11.30. The injured were rushed to a nearby hospital.
The deceased are reportedly Trinamool Congress (TMC) workers.
Meanwhile, the police have begun the investigation to ascertain the identity of the perpatraotrs.
Earlier, on Saturday, a voter turnout of 78.25 per cent marked the fifth and penultimate phase of Assembly polls in West Bengal.
By the end of polling on Saturday, 186 people were arrested in incidents of electoral malpractice and sporadic violence that left at least 15 injured.
Results of West Bengal Assembly elections will be out on May 19