A 15-year old student in Paraná, Brazil, opened fire on his classmates on Friday, TASS reported referring to Globo.

One of the injured is in critical condition. The incident occurred early morning, immediately after the beginning of the classes.

The teenager and his alleged accomplice were detained.

According to him, he wanted to take revenge on his classmates for mockery.

Under the investigation, the parents of the teenager were also summoned. Several weapons were found in their house.