Earlier reports said it all started when a father came to the school premises to punish his son for not attending his class one day. The school contacted the father a day earlier to report his son's absence.

The boy was studying for his final exams when his father came and beat him up in full view of his classmates, reports said.  Angered by the humiliation, the son went home and came back with a Kalashnikov rifle. 

Forewarned by his wife that their son left with the weapon, the father took his own gun from inside his vehicle and stood in front of the school to prevent his son from causing any harm. But as soon as the boy arrived, he started firing at the school building and cars in the parking lot.

The father fired warning shots to scare his son away. The boy fled after emptying the gun's magazine, but police caught up with him and arrested him hours later.