A madrasa student was killed allegedly by his classmate at a mess of Gazirdargah Madrasa in Jashore's Jhikargachha upazila early yesterday.
The deceased was Solaiman Hossain, 13, son of Jakir Hossain of Agrabhulot village, and a student of Class Vll of the madrasa.
Police said Solaiman locked in an altercation with his classmate Sumon Hossain, son of Nurunnabi of Meghla village, over a trivial matter on Sunday evening.
At one stage, Sumon hit Solaiman on the head with a stick, leaving him critically injured.
Other students rescued him from the spot.
Solaiman was sent to Dhaka Medical College Hospital where he died, said Fakhrul Alam, a teacher of the madrasa.
A case was filed in this connection, said Abdur Razzak, officer-in-charge of Jhikargachha Police Station, adding that they were trying to arrest the accused.