The factional feud in the Trinamool Congress has come out in the open with the killings of three of its supporters at Joynagar in the State’s South 24 Parganas district on Thursday.Supporters of the TMC created a ruckus outside the Joynagar police station on Friday. TMC district president Subhasish Chakraborty also faced protests when he went to hold a political meeting in the district. Three persons who were travelling in the vehicle of local MLA Biswanath Das were shot dead at a petrol pump late on Thursday evening. The MLA had got off the vehicle a few minutes before the attack. Mr. Das said that his supporters were upset after the attack and that resulted in the protests. TMC supporters were publicly seen beating up a person outside the police station, accusing him of being involved in the attack. Some party supporters were seen saying that were being used as cannon fodder in the rivalry between two factions of the party.Meanwhile, the Criminal Investigation Department of the West Bengal police took over the case on Friday. Since Thursday evening, 11 people have been arrested in connection with the murders. The police are looking at CCTV footage at the petrol pump to identify the accused who fired on the TMC MLA’s vehicle. The vehicle has been impounded and will be sent for forensic examination. The police seized bombs from the site.