The arrestee was identified as Iftekhar Adnan, a physician at a private hospital in the city and health affairs sectary of Jubo Dal’s Chattogram city unit.
Chittagong Metropolitan Police (CMP) confirmed the arrest at a press conference on Saturday night.
Abul Kashem, officer-in-charge of Panchlaish Police Station, said an audio clip about the coronavirus situation in Chattogram went viral on social media.
Iftekhar has confessed to being the one heard speaking in it, he said.
Meanwhile, a court on Sunday placed him on a three-day remand on Sunday.
Chittagong Metropolitan Magistrate Abu Salem Mohammad Noman passed the order after police produced him before his court seeking a seven-day remand.
Mosharraf Hossain Dipti, president of Dubo Dal city unit, said even though Iftekhar was the health affairs sectary, he did not take part in any programme of the party. “I have no idea why he did this,” he said.
In the audio clip, the doctor asked one Rohan to be careful over the coronavirus outbreak and described the fake death number of coronavirus patients at Chittagong Medical College Hospital.