Unidentified gunmen attacked car of a Trinamool Congress MLA in South 24-Parganas district on Thursday evening killing three party workers. The gunmen opened indiscriminate firing and hurled petrol bombs at the vehicle of MLA Biswanath Das at a petrol pump in Joynagar area, about 55 km from Kolkata.
The incident occurred shortly after Biswanath Das disembarked from the vehicle at a party office nearby.
The police have started an investigation into the killing and detained a few people for questioning.
Meanwhile, Das alleged that CPI(M) goons were behind the incident, but the left party leader Sujan Chakraborty claimed that the shootout was the result of internal feud of the ruling Trinamool Congress.