Nine Utumishi Girls students accused of arson that killed nine schoolmates appeared in court as prosecutors sought 30 days to complete investigations.

A review of CCTV footage helped investigators to piece together the sequence of events.

Detectives are now pursuing a seventh suspect who had earlier been released to her parents and is currently not in custody.

The situation at Utumishi Girls Senior School may be indicative of conduct disorder.

9 students brought to court on suspicion of starting the fire.