Police recovered the charred body of a student from Nischintpur Qawmi Madrasa in Thakurgaon sadar upazila on Saturday morning.
Deceased Abu Bakar, 16, is the son of Sirazul Islam of the upazila.
Students of the madrasa said Bakar’s body was found hanging inside a toilet in the wee hours. On information, police rushed in and recovered the body after breaking open the toilet’s door.
He visited his home on Friday morning and returned to the madrasa in the evening, Bakar’s family said, adding that he might have been killed.
However, the madrasa authorities claimed that he had committed suicide by setting himself on fire.
Officer-in-Charge Abdul Latif of Thakurgaon sadar police station said: “We are investigating whether the student committed suicide or was murdered. We have already detained eight people, including the madrasa’s superintendent, for interrogation.”
The body was sent to a local hospital for an autopsy.