A class IX student of Gono Bidyaloy Niketon in Narayanganj city hanged herself at her house on Thursday because of "insult by her teachers".

Umme Habiba Sraboni, 14, left a "suicide note" where she mentioned the names of two teachers and the way they insulted her during the physics exam that day, said the family.

The note said one teacher was responsible for the consequences she suffered.

On Thursday, when the girl was sitting for the exam, an invigilator seized her answer script on allegations of cheating while another teacher slapped and insulted her and expelled her though she did not cheat in the exam, the note said.

Back home, she hanged herself.

The school management committee said they would take action against the teachers if they were found guilty.

Officer-in-Charge of Narayanganj Sadar Model Police Station Abdul Malek said they did not receive any complaint.