At least 30 people, including Krishak Dal Central Committee General Secretary Shahidul Islam Babul and District BNP Convener Syed Modarres Ali Isa, were injured in an attack on BNP's founding anniversary rally.
The incident took place in the Faridpur district court premises on Sunday afternoon.
BNP leaders later complained in a press conference that the Awami League leaders and activists carried out the attack in the presence of police.
According to eyewitnesses, leaders and activists of Chhatra League and Jubo League carried out the attack shortly after the rally started presided over by BNP Convenor Syed Modarres Ali Isa.
The attack lasted about half an hour and then District Awami League President Shamim Haque and Municipal Mayor Amitabh Bose reached the spot and held a short rally where they said that if BNP wanted to hold a rally, they must take permission from Awami League.
Following the incident, BNP leaders said in a press conference that they were holding the rally with the permission of Faridpur deputy commissioner and superintendent of police.