Kishanganj: Apparently depressed over failing in board examination, a 15-year-old girl allegedly committed suicide after hanging herself from a tree in Bihar's Kishanganj district, police said today.

The incident took place in Chandera village late last night as the victim, identified as Soni Kumar, hanged herself from a mango tree hours after she failed in the board examination, the results of which were declared yesterday, Bahadurganj police station in-charge Vinod Kumar Singh said. The body has been sent for post-mortem at Sadar hospital, he said.