A youth was killed, and two others were injured in a clash with two rival groups at Panchghoriakandi of the district town on Saturday night.
Police and locals said a conflict between the two groups has been prevailing for a long time.
According to local sources, one group is led by defeated candidate Wahidu zzaman Babul, and another group is led by winning councilor candidate Zakir Hossain.
After the UP election defeated Babul and his supporters continue conflicting with the winning Councillor Zakir group. At one stage on Saturday night supporters of Babul group was engaged in clash with the Zakir group.
During the clash, one was killed and two others injured in the firing.
The deceased was identified as Jony, 17, worker of carpentry.
The others two injured are Manik Sarker, 30, and Kalu Bepari, 31. They are admitted to Munshiganj General Hospital after the incident.
The bullets injured Jony died in the hospital.
Superintend of Police (SP) Biplop Bijoy Talukder said that adequate police were deployed at the area to bring the situation under control.
After the incident police arrested one Apu and recovered three foreign made pistols, four magazines and 22 rounds of bullet.