The Rapid Action Battalion (RAB) has arrested a man in connection with the killing of a schoolgirl in the capital`s Banasree area.

According to RAB, a suspect identified as Milon. He is a restaurant worker by profession.

The arrest was made based on closed-circuit television footage and evidence that the suspect went into hiding after the incident.

MZM Intekhab Chowdhury, Wing Commander and Director of RAB`s Legal and Media Wing, confirmed the arrest in a massage on Monday.

It was learnt that Milon works at the restaurant owned by victim Fatema Akter Nili`s father. Nili was alone during the incident happened. But the motive behind the murder could not be known.

A case was filed on Saturday night accusing some unknown persons.

The body of Nili, a 10th-grade student at Radiant School and College, was recovered on Saturday afternoon from an apartment named `Pritom Villa` in South Banasree’s Block L after police responded to an emergency call made to the national hotline 999. She lived with her parents, a brother and a sister. But there was no one during the murder incident.

Police said CCTV footage showed Milon entering the apartment around the time of the killing.