ISLAMABAD, March 11: The Aabpara police have arrested a 15-year-old seminary student on the charge of kidnapping and killing his classmate in the city about two months back.

The police are also hunting for a relative of the accused who allegedly kidnapped children and sold them to militants for their use in terror activities, sources close to the investigation told Dawn.

The 13-year-old boy from Waziristan disappeared from his madressah situated at Shakarparian on January 4. His father, who currently lived in Taxila, lodged a complaint with the Taxila and Aabpara police on January 29 about the disappearance of his son.

On January 4, the boy left the seminary along with his class fellow in front of other students.

Though the same day the accused returned to the seminary, the student from Waziristan went missing.

When asked by the seminary administration, the accused, a native of Mardan, showed ignorance about the whereabouts of the missing student and even denied that he had accompanied him out of the seminary.

On January 6, when the seminary administration grilled him to tell about the missing student, the accused fled from the institution.

Three weeks later - on Jan 29 - he along with another person reached the Aabpara police station and lodged a complaint against the administration of the madressah.

He alleged that the madressah administration was treating him unfairly after the student went missing.

When the police approached the seminary, its administration informed them that the missing student had gone out with the complainant.

They said instead of telling anything about the whereabouts of the student, the accused had escaped from the seminary.

The police detained the student for investigation the same day. During questioning, he confessed that the victim had left the madressah with him.

He said he took him to Peshawar Road and handed him over to some people near a garment factory. However, a day later he changed his statement and said the student was handed over to some people at Sabzi Mandi who took him away.

Police picked up a number of people from the Sabzi Mandi area on the basis of the allegations but later they were allowed to go.

But on February 14, the accused told the police that he took the victim to Quaid-i-Azam University (QAU) where he and his brother in-law molested him.

After molesting the boy, when the brother-in-law of the accused tried to take the boy away, the latter resisted.

A brawl took place during which the brother-in-law hit the boy in the head with a baton. As a result, the student fell unconscious.

Both the accused persons escaped from the scene. On the information provided by the teenage accused, the police recovered the decomposed body of the victim from the premises of the university on February 14.

The arrested boy told the investigators that he used to arrange boys for a group with whom his brother-in-law was in touch.

He said he lured his victims to a designated spot from where the agents of the group took them away. The police raided several spots in and outside the capital city to arrest the relative of the accused but he is still at large.