Two children were injured after a crude bomb they mistook for a toy exploded at Ghop Mahmudur Rahman School ground in Jashore district town on Monday evening.
The injured were identified as Sapan, 11, son of Bayezid Rahman and Mehedi, 9, son of Mukul Ahmed of Ghop Central Road area.
Local people said Sapan and Mehedi found an object, containing a crude bomb, while playing on the school premises that exploded with a big bang, leaving them injured.
They were taken to Jashore General Hospital.
Swapan, a duty doctor of Jashore General Hospital, said one of victim sustained injury on a wrist while another sustained burn injury.