Mohammad Mahsin, officer-in-charge of Kotwali Police Station, said Muktijoddha Sangshad Sontan Command organised a human chain in front of the Chattogram Press Club protesting burial of freedom fighter Ali Ashraf without state honour.
Chowdhury Farid, general secretary of Chattogram Press Club, said they took position in front of the Press Club in the morning.
Suddenly, the supporters of MP Mostafiz carried out an attack on their peaceful programme, leaving 20 people injured.
Metropolitan unit Muktijoddha Commander Mozaffar Ahmed, Banshkhali unit Commander Abul Hashem, Satkania unit commander Abu Taher, freedom fighter Azimul Islam Bhedu, district unit Muktijoddha Commander (finance) Abdur Razzak, Chowdhury Farid, general secretary of Chattogram Press Club Joynal Abedin, nephew of Guerilla Commander Moulvi Syed Ahmed and ten photo journalists were among the injured.
They organized the progrmme also to protest the false case filed against journalist Faruk Abdullah, a family member of Guerilla Commander Moulvi Syed Ahmed, under the Ddigital Security Act, said Zahir Uddin, organising secretary of South unit Krishak League.
On information, police went to the spot and brought the situation under control.
Police arrested two people from the spot.