KARACHI: Bodies of a minor girl and boy were found in a school in Karachi's Patel Para area on Tuesday.

According to police, the 16-year-old boy had killed his female matriculate colleague before shooting himself while the assembly session was under way in Gulshan-i-Fatima School in Patel Para. However, mystery prevails as to what really happened.

Police sources add that the boy and girl were reportedly having an affair and the incident was apparently a mutually agreed upon activity as their parents had not allowed them to get married.

The incident appears to have taken place in the class that the boy and the girl attended. It seems to have happened as the rest of the school was in the ground partaking in the daily assembly session.

A 9mm pistol and two shells were recovered from the crime scene.

Police also claims to have recovered two 'suicide notes' allegedly written by the teenagers in which they have apologised to their parents.

The handwriting in the two notes appears identical, raising suspicion that they were written by the same person.

Police sources said the families of both victims and the school administration had been questioned and investigators had found "nothing suspicious about their behaviour".

They added that the police was investigating if and how the male student had managed to acquire a handgun and had brought it inside the school premises.