Kolkata: Two girl students of Class XII from a school in North 24-Parganas’ Deganga attempted suicide in a gap of 15 minutes during school hours triggering tension among other students.Both the victims have been undergoing treatment at Barasat District hospital. One of the victims is stated to be critical. The incident took place at Chuarashia High School in Deganga. It was learnt that both the victims were behaving normally on Monday morning.Their classmates do not have the slightest idea as to why the duo attempted suicide inside the class. The victims are from two different sections of the same class. Also Read – Rain batters Kolkata, cripples normal lifeAfter the second period got over and teacher left the classroom, one of the victims suddenly took out a blade and slit her wrist. Her classmates suddenly found the victim bleeding profusely from her left wrist.After being informed the headmaster of the school and other teachers rushed to the classroom. They took the victim to Barasat District Hospital.When the victim was taken to the hospital, the other student attempted suicide by consuming poison that she might have carried to school from home. The two incidents occurred in a gap of 15 minutes.The second victim fell unconscious after consuming the poison. Some school teachers took her to Barasat District Hospital. The school authorities are yet to ascertain the cause as to why the two girls attempted suicide. The school authorities have lodged a complaint with the local police station on the basis of which a probe has been initiated. Police are investigating if the victims attempted suicide after being jilted in love.According to hospital sources, the one who slit her wrist is in a serious condition, while the other girl is showing a sign of improvement. Both the victims have been kept under close monitoring, hospital authorities said.