Police arrested man from his residence at Uttara in the capital on Friday in a case filed over the killing of three people during a clash between two groups of the religious community on the Ijtema ground.
The arrestee was Muaz Bin Noor, 40, spokesperson for the followers of Mawlana Saad and son of Nur Mohammad from Sector No-7 in Uttara.
Noor is the fifth accused in the list of 29 accused, said Habib Iskandar, Officer-in-Charge (OC) Tongi West Police Station.
Earlier, on Thursday, SM Alam Hossain, an associate of the Alami Shura in the Zubair faction in Kishoreganj, filed a murder case against 29 named and several hundred unnamed people over the killing of four pro-Zubair supporters of the Tabligh movement at Tongi in Gazipur on December 18.
Following the incident, the authority imposed Section 144 on the Ijtema ground and within 3km radius of the ground, banning gatherings and asking both groups to vacate the area to prevent further clash.