Students and teachers of Sristy Academic School at a rally in the town yesterday demanded immediate arrest and exemplary punishment of the killers of Mohaimenul Islam Hamim, a student of the school.
The speakers came down heavily on police as they are yet to identify the criminals.
Principal of Sristy Academy School Mir Nazmul Huda, Vice Principal Anwar Hossain and the victim's father Shafiqul Islam spoke at the rally.
Later, they submitted a memorandum to the deputy commissioner and the superintendent of police to realise the demand.
Hamim, 16, of Purba Adalat Para area in the town, was found murdered at a crop field in Nagarpur upazila on Tuesday.
Md Main Uddin, officer-in-charge of the police station, said they on Wednesday arrested one Shahin in connection with the murder. The arrestee was later produced before a court, seeking five-day remand in the case.